Monday, July 21, 2025

Clean Air Solutions for Food Processing Facilities for Safety, Compliance and Efficiency

Food processing facilities face unique and complex challenges in maintaining clean air. The movement of raw materials, open processes, fluctuating temperatures and high humidity all create ideal conditions for airborne contamination. Standard HVAC systems and filters simply aren’t enough to protect sensitive production zones from bacteria, mold spores and allergens. 

Adopting advanced air filtration solutions is essential to meeting regulatory requirements and consumer demand for food safety standards. From preventing cross-contamination to reducing energy costs and extending equipment life, the right filtration systems support nearly every facet of food production.

The relationship between air quality and food product integrity is intricate. Airborne contaminants can settle on surfaces and ingredients, directly impacting shelf life, taste and safety. This is why air handling must be treated as a proactive strategy, not a reactive remedy. 

Read further to learn how a comprehensive clean air strategy combining high-efficiency air filters, air cleaners and proven contamination control practices can protect food safety, optimize performance and secure regulatory compliance.

Contaminants in Food Processing Facilities 

The effects of contamination in food processing are twofold, threatening both the health of consumers and the bottom line of producers. From a financial perspective, contamination can lead to significant product loss during production, increased waste, reduced shelf life and costly product recalls and returns. These expenses can place a substantial burden on a facility’s profitability and undermine brand reputation which is very difficult to recover

Far more critical, however, is the risk that contaminated food poses to public health. Airborne pathogens, bacteria and viruses can cause a wide spectrum of foodborne illnesses, ranging from mild gastrointestinal discomfort to life-threatening infections. Vulnerable groups, including infants, young children, the elderly, pregnant women and individuals with weakened immune systems, face the highest risk of severe illness or complications.

Particles such as dust, bacteria, mold, and yeast can infiltrate products and cause health problems for consumers. One of the most common vectors for contamination is bioaerosols, microscopic liquid or solid particles suspended in the air that carry microbes. Bioaerosols are frequently generated when microbial sources are disturbed. For example, high-pressure hoses used to clean outside holding pens can propel particles into the air, where they remain suspended for minutes or hours and depending on airflow and particle size, can be drawn into the plant through nearby poorly filtered HVAC units. Other common contributors include unfiltered compressed air lines, poorly maintained HVAC systems and even foot or vehicle traffic moving through stagnant water. Bioaerosols can also originate outside the facility, traveling from neighboring buildings or fields before settling onto contact surfaces or directly onto food.

Among the most prevalent bioaerosol contaminants are microorganisms such as Salmonella, E. coli, Listeria, Bacillus and Clostridium. Yeasts and molds are also frequently encountered, especially in environments where bacterial growth is inhibited, like foods preserved with high salt concentrations. Viruses, including norovirus and hepatitis A, further complicate contamination control due to their resilience and ease of transmission.

To combat these risks, food processing facilities must be designed and maintained to limit exposure to airborne contaminants. Effective measures include optimizing the placement and performance of HVAC systems, maintaining positive air pressure in sensitive areas and implementing high-efficiency air filtration capable of capturing and neutralizing bioaerosols. Coupled with rigorous sanitization protocols and environmental monitoring, these strategies form a critical line of defense to safeguard both product integrity and public health.

Regulatory Standards Governing Air Quality in Food Processing

Maintaining clean air at food processing facilities isn’t just a best practice, it’s a regulatory imperative enforced by multiple agencies and frameworks. While no single rule prescribes universal air quality thresholds for every product, the FDA, USDA and HACCP principles collectively define stringent requirements and protocols to prevent contamination and protect public health.

The FDA sets the baseline for most human food facilities under the Current Good Manufacturing Practice (CGMP) regulations, detailed in 21 CFR Part 117. These rules mandate that buildings be designed and maintained to prevent airborne hazard contamination. Facilities must have adequate ventilation, filtration and airflow control to minimize vapors, odors and particulates that could compromise food safety. Under the Food Safety Modernization Act (FSMA), processors must also establish risk-based preventive controls, which often include strategies for controlling airborne contaminants.

The USDA regulates meat, poultry, and egg products, requiring facilities to comply with 9 CFR Part 416 sanitation standards. These rules stipulate that ventilation systems must effectively control condensation, noxious fumes and airborne contaminants. USDA inspectors routinely verify that ventilation and air handling equipment are sanitary, well-maintained and sufficient to prevent product adulteration.

Hazard Analysis and Critical Control Points (HACCP) programs are mandatory for certain food products, but many processors choose to follow those guidelines on their own accord.  HACCP is an internationally recognized framework requiring facilities to assess risks in their processes and establish preventive measures where necessary. For example, if a hazard analysis identifies potential for airborne pathogens or allergens, the facility must define controls such as HEPA filtration, positive air pressure zones or specialized air change rates to mitigate the risk.

Taken together, these regulations, standards and recommendations underscore a clear message: clean air is fundamental to food safety, regulatory compliance and consumer trust. Well-designed ventilation systems, validated air filtration technology and rigorous environmental monitoring enable food processors to demonstrate that their facilities are equipped to control airborne hazards at every step.

Role of Air Filtration in Controlling Contamination 

An air filter is just one part of the broader, more sophisticated HVAC system that governs the ventilation within a food processing facility. This system is responsible for supplying air that meets precise requirements for temperature, humidity and pressure, all of which are essential to maintaining a safe product and a healthy working environment.

The choice and performance of an air filter have a direct influence on food safety programs and those tasked with upholding strict sanitation standards. Overlooking the importance of carefully evaluating a filter’s capabilities can lead to consequences far beyond contamination risks. Ineffective filters can drive up energy consumption, jeopardize positive pressure in critical process zones, increase equipment wear, raise labor demands and generate excessive waste headed to landfills, all of which escalate operational costs and erode a facility’s efficiency.

Generally speaking, food processing facilities rely on as many as four distinct categories of equipment, designed for air to flow through and contain air filters..  The first is the primary HVAC system, usually installed on the roof, which supplies fresh air and regulates the building’s temperature and humidity. The second category would be make-up air handling units, which provide fresh outside air into the facility. These units do not have heating or cooling capabilities. A third includes process filters, specialized filtration components that protect the air entering specific pieces of equipment. A coalescing filter is a type of process filter. Another type would be a  HEPA filter safeguarding aseptic systems. The last type consists of independent, stand-alone air cleaners, which are often positioned near zones that are prone to generating contaminants.

Even the most carefully engineered air handling infrastructure will fall short without selecting the right filters for each application. To effectively trap bioaerosols and other airborne hazards, facilities should use high-efficiency filters. It is important to choose filters carrying both a MERV and MERV-A rating. The “A” designation—for example, MERV 14-A—indicates the filter has been evaluated under conditions that reflect real-world use, ensuring its performance remains consistent over time rather than declining as it loads with particles.

In areas that are known sources of internal contamination or where maintaining elevated air pressure is critical, stand-alone air purification systems can provide an additional layer of defense against airborne pollutants.

Ultimately, the responsibility to produce safe food and beverages falls on the facility operators. They must determine which filtration approach best fits specific processes, whether that means specifying certain MERV ratings, integrating HEPA filters or deploying supplemental air purification units. Because no two operations are identical, there is no universal solution. For this reason, partnering with an experienced air filtration professional is strongly recommended to ensure you select the right air filters.

The Necessity of Positive Pressure 

An essential element of any effective food safety strategy is controlling the pressure and the direction in which air moves throughout the facility. Ideally, the air pressure inside a food processing plant should be positive, meaning it is higher than the pressure outside the building. This pressure differential drives air outward through open doors, windows and even small structural gaps, acting as a protective barrier that keeps airborne contaminants from entering the building envelope.

Within the facility, pressure gradients should be carefully managed so that the most critical production areas maintain the highest pressure levels, while less sensitive zones have lower pressures. This setup ensures that any internally generated particles or microbes are contained and flow away from high-risk areas, preventing contaminants from traveling, for example, from a storage warehouse into the processing line.

Air that has been conditioned for temperature and humidity as well as filtered to a high level,  is a very valuable asset for a food processor.  Camfil’s advanced air filters are engineered to deliver the lowest average pressure drop to allow greater volumes of air to be moved efficiently, helping maintain strong positive pressure throughout the building. Increased airflow also provides the flexibility to control and direct air currents in ways that support the highest standards of food safety, tailored to the unique configuration of each plant.

Clean Air Zones – Designing a Controlled Airflow Strategy

Unlike other manufacturing industries, food processing facilities handle an exceptionally diverse range of raw materials, from hot and cold ingredients to raw, cooked and even slaughtered products. Every stage of production comes with its own set of contamination risks, making it essential to choose air filtration solutions precisely matched to each process step.

At the front end, incoming raw materials are typically sorted, sifted and prepped, activities that often create substantial product dust. This airborne dust is captured at the source through localized hoods and conveyed through ductwork to cartridge-style dust collectors positioned outside the building.

The core processing zones of the facility are where the most critical production operations occur. Here, the greatest volume of clean, conditioned air is delivered, usually by rooftop air handling units equipped with multiple stages of filtration to protect against contaminants. Process machinery such as aseptic packaging lines rely on this clean ambient plant air as their intake source, making filtration performance in these areas especially vital.

Spaces dedicated to quality control and taste testing are commonly segregated from production zones and safeguarded with HEPA filters to preserve product integrity. Temporary storage rooms and finished goods warehouses, including cold storage facilities, demand close management of both temperature and airflow to maintain food safety standards.

Beyond production spaces, a food processing plant also includes offices and administrative areas that support daily operations. These environments house a facility’s most valuable asset, its people, and ensuring employees have access to clean, healthy air is equally important as protecting the product itself.

Key Camfil Solutions for Food Industry Applications

When it comes to protecting food quality and ensuring compliance, Camfil offers a comprehensive suite of air filtration and dust collection solutions engineered specifically for the unique demands of food processing environments. From limiting microbiological cross-contamination caused by mold, bacteria, and viruses to capturing fine dust and volatile organic compounds, Camfil’s air filtration products help safeguard every stage of production. With a portfolio designed to meet the strictest industry standards, Camfil empowers food manufacturers to maximize operational excellence, achieve high energy efficiency and keep total cost of ownership low.

As noted above, air filtration solutions must be customized for each specific facility for the best operational outcomes. Our general air filtration recommendations are: 

  • Pre-filters rated MERV 8 for initial contaminant capture
  • Final filters rated MERV 13A through 16A for critical applications
  • HEPA filters for sensitive food production areas

Camfil Product Applications:

Case Studies and Success Stories 

  • One of North America’s largest food companies, also one of the nation’s leading specialty potato providers to restaurants and other food service establishments, was experiencing high contaminant levels over the batter and fry lines during sweet potato production. Camfil created a customized solution for high-, medium- and low-contamination areas. Read the full story.
  • A well-known baking facility in Pennsylvania faced significant challenges with processes that produced excessive flour dust. These airborne particles accumulated on equipment surfaces and migrated into the return air exhaust ductwork, as well as other parts of the ventilation system. Camfil surveyed the site and installed two CamCleaners with 2,000 CFM capacity each in optimal areas to capture the airborne flour and improve airflow patterns. High-quality air filters were installed in the rooftop air handling units to improve overall air filtration. Read the full story.
  • One of America’s largest beef processing plants was struggling with contaminants infiltrating food production areas due to subpar air filter performance. Frequent filter replacements had become a costly, time-consuming burden, while overall airflow and air quality were at risk. To address the problem, Camfil was brought in to conduct a comprehensive Life Cycle Cost analysis, modeling how different air filters perform under the facility’s specific operating conditions. Based on the findings, Camfil-recommended filters were installed in three of the five air handling units (AHUs). Ongoing performance tracking demonstrated substantial savings by reducing energy consumption, labor requirements and disposal costs. Read the full story.

ROI and Operational Benefits

When evaluating air filters, it’s essential to look past the upfront price tag and consider all the expenses that accumulate over the filter’s entire lifespan. Factors such as energy usage, gradual loss of performance, labor for installation and replacement and disposal fees all contribute to the total cost of ownership (TCO). TCO is a comprehensive financial assessment that helps buyers understand both the direct and indirect costs tied to a product or system over time.

Filters with a low initial cost often clog more quickly, which drives up operational expenses as HVAC systems have to work harder and consume more energy to maintain airflow. By contrast, Camfil filters retain their efficiency much longer, capturing contaminants and preserving optimal airflow up to two or three times longer than conventional low-cost alternatives. This not only results in lower energy consumption but also reduces the frequency of filter changes, which means fewer replacement filters, less labor and less waste headed to landfills. All of these advantages further reduce overall TCOS.

To help facilities make informed decisions, Camfil offers the Life Cycle Cost (LCC) Software, an advanced modeling tool that calculates the TCO for various filter options under real-world conditions. The software analyzes factors such as filter price, energy usage, labor, carbon footprint and disposal costs. It also recommends the ideal pressure drop point for filter replacement to optimize energy savings and extend filter life as much as possible.

Don’t be swayed by bargain filters that appear cheaper upfront but end up costing you far more over time. When you’re ready to invest in new air filters, be sure to evaluate the complete picture and consider the true TCO to achieve the best long-term value and performance.

Conclusion 

Clean air solutions are critical for success in food processing. From protecting product integrity and preventing costly recalls to ensuring regulatory compliance and supporting a safe working environment, effective air filtration is the backbone of a resilient, efficient operation.

The connection between air quality, food safety and operational performance cannot be overstated. Facilities that prioritize clean air safeguard consumer health and also gain measurable advantages in productivity, energy savings, and brand reputation.

With decades of proven expertise in the food industry, Camfil delivers advanced air filtration solutions designed to meet the strictest standards and the most demanding applications. From high-efficiency filters to comprehensive lifecycle cost analysis, Camfil is committed to helping food manufacturers achieve cleaner air, safer products and lower total cost of ownership.

Contact Camfil to schedule an assessment of your food processing facility or connect with an air filtration specialist to discuss your specific needs.

 

¹ https://cleanair.camfil.us/2018/01/18/protecting-food-airborne-contaminants-can/

² https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-117

³ https://www.fda.gov/food/guidance-regulation-food-and-dietary-supplements/food-safety-modernization-act-fsma

https://www.ecfr.gov/current/title-9/chapter-III/subchapter-E/part-416

https://www.fda.gov/food/hazard-analysis-critical-control-point-haccp/haccp-principles-application-guidelines

https://www.camfil.com/damdocuments/29554/29384/brochure-food-and-beverage.pdf

https://cleanair.camfil.us/2018/01/18/protecting-food-airborne-contaminants-can/

https://www.camfil.com/damdocuments/29554/29384/brochure-food-and-beverage.pdf

https://www.camfil.com/damdocuments/29554/29384/brochure-food-and-beverage.pdf

¹⁰ https://cleanair.camfil.us/2016/10/27/how-to-account-for-total-cost-of-ownership/

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Monday, July 14, 2025

Why Your Million-Dollar Database Is Choking to Death (The Air Filtration Crisis No One Talks About)

Your AI-powered databases are consuming 21% more energy and failing faster than ever—not because of software bugs or hardware defects, but because of contaminated air silently destroying your infrastructure. While IT teams focus on optimizing algorithms, airborne particles are clogging cooling systems, causing thermal throttling, and creating cybersecurity vulnerabilities that could cost millions. Camfil’s advanced filtration technology reduces data center energy consumption by up to 20% while extending hardware life by 2-3 times, protecting your database investments and ensuring peak performance. Discover how Fortune 500 companies are solving this hidden crisis below.

The future of database management is rapidly evolving. From machine learning-enhanced query optimization to in-memory processing systems, modern databases are becoming increasingly sophisticated and powerful. But as these systems grow smarter and more demanding, there’s a critical infrastructure element that often gets overlooked:  the air they breathe.

The Database Revolution is Here

Recent breakthroughs in database technology are reshaping how organizations handle data. Carnegie Mellon University’s Andy Pavlo, a leading database researcher, recently highlighted revolutionary developments such as SuRF (Succinct Range Filter)—a breakthrough that enables databases to perform complex range queries with just 12 bits per key while maintaining lightning-fast performance comparable to Bloom filters.[^1]

But perhaps more significantly, the industry is witnessing two major architectural shifts:

  1. Machine Learning Integration:  Databases are incorporating AI to optimize everything from query planning to index structures, with researchers exploring ways to learn new policies based on observed workload rather than relying on hardcoded rules.[^1]
  2. Cloud-Native Architectures:  The rise of shared-disk distributed systems that use distributed storage layers like HDFS or Amazon EBS/S3 is fundamentally changing how data centers operate,[^1] with increased processing demands and heat generation.

These advances represent a quantum leap in database capability – but they come with a hidden cost that’s straining data center infrastructure.

The Invisible Threat to Database Performance

While database engineers focus on optimizing algorithms and query performance, a silent enemy is undermining their efforts:  poor indoor air quality.

Modern database systems, especially those enhanced with machine learning capabilities, require unprecedented computational resources. AI models, especially large language models (LLMs), require enormous computational power—training a single LLM comparable to GPT-3 consumes approximately 10 gigawatt-hours (GWh), equivalent to the annual electricity consumption of over 1,000 American households.[^2]

The International Energy Agency (IEA) reported that data centers consumed about 1% of the world’s total electricity in 2020, but researchers from MIT’s Sloan School of Management estimate that by 2030, data centers could account for up to 21% of global energy demand with the current rate of AI growth.[^2] But cooling alone isn’t enough—the quality of air circulating through these systems is equally critical.

Consider what happens when airborne contaminants infiltrate your high-performance database servers:

The Performance Penalty

  • Thermal Throttling:  Dust accumulation forces CPUs to reduce clock speeds to prevent overheating, directly impacting database query performance.
  • Memory Errors:  Overheating can cause RAM instability, leading to corrupted data and system crashes during critical database operations.
  • Storage Failures:  Heat-stressed solid state drives (SSDs) and hard disk drive (HDDs) fail prematurely, threatening data integrity and requiring expensive emergency recovery procedures.

The Hidden Costs

Research from MIT shows that AI-enhanced databases are pushing data centers toward consuming up to 21% of global energy demand by 2030.[^2] Poor air quality compounds this problem by:

  • Forcing cooling systems to work 30-40% harder when heat exchangers are clogged with contaminants[^2]
  • Requiring frequent hardware replacements due to corrosion and thermal damage
  • Creating unplanned downtime that can cost enterprises $5,600 per minute

The Cybersecurity Connection

Here’s where the stakes get even higher. Poor air quality doesn’t just impact performance and costs—it creates cybersecurity vulnerabilities.

When contaminated air causes unexpected hardware malfunctions, it can trigger emergency shutdowns that disrupt critical security monitoring systems. Cybersecurity experts from VentureBeat warn that modern attackers are increasingly “weaponizing heat” by targeting cooling systems to cause outages that expose networks to data exfiltration, with attackers aiming to “exfiltrate billions of dollars in data from data centers by attacking cooling systems.”[^2]

For organizations running AI-enhanced databases containing sensitive information, maintaining stable operating conditions isn’t just about performance— it’s about protecting billions of dollars in digital assets and the organization’s professional reputation. 

The Smart Solution:  Engineering Clean Air for Smart Databases

The database revolution demands a new approach to data center infrastructure – one that recognizes air quality as a critical performance factor, not just a maintenance concern.

What Modern Database Infrastructure Requires

Ultra-Low Pressure Drop Filtration:  As databases become more computationally intensive, cooling systems need maximum airflow efficiency. High-resistance filters that seemed adequate for legacy systems now create unacceptable energy penalties.

Extended Filter Life:  With 24/7 database operations, maintenance windows are precious. Filtration systems must deliver consistent performance for months, not weeks, between service intervals.

Molecular-Level Protection:  Modern database servers contain increasingly sensitive components that require protection from both particulate matter and gaseous contaminants that can cause corrosion.

The Camfil Advantage for Database-Driven Organizations

Camfil’s advanced filtration technology addresses these challenges with solutions specifically engineered for high-performance computing environments:

  • Energy-Optimized Design:  Camfil air filters maintain superior air quality while minimizing pressure drop, reducing cooling system energy consumption by up to 20%
  • Extended Service Life:  Advanced media technology provides consistent protection for 2-3x longer than conventional filters, minimizing disruption to critical database operations
  • Comprehensive Protection:  From molecular filtration to particulate removal, our solutions protect every component of your database infrastructure

Future-Proofing Your Database Infrastructure

As databases continue to evolve – incorporating more AI, processing larger datasets, and operating in increasingly distributed architectures – the infrastructure supporting them must evolve too. As Pavlo notes, future database management systems will need to handle data that “was never static, clean, or well-structured” and will require new approaches to manage diverse data formats and cloud-native architectures.[^1]

The organizations that will thrive in the age of intelligent databases are those that recognize the interconnected nature of all infrastructure systems. Your database’s ability to leverage machine learning for query optimization depends on stable hardware. Your hardware’s stability depends on effective cooling. And your cooling system’s efficiency depends on clean air.

Taking Action:  Building Resilient Database Infrastructure

The future belongs to organizations that take a holistic approach to database infrastructure. This means:

  1. Evaluate Current Air Quality:  Assess whether your existing air filtration can handle the increased demands of modern database systems
  2. Calculate Total Cost of Ownership:  Factor in energy costs, hardware longevity, and downtime risks when making air filtration decisions
  3. Plan for Growth: Ensure your air quality infrastructure can scale with your database performance requirements

The Bottom Line

The next generation of database technology promises unprecedented capabilities, from self-tuning query optimizers to real-time AI-powered analytics. But realizing this potential requires infrastructure that can support it.

In the race to build smarter databases, don’t let poor air quality hold you back. The most sophisticated algorithm in the world can’t overcome the limitations of overheated, contaminated hardware.

Your databases are getting smarter. Make sure the air they breathe is too.

Ready to optimize your database infrastructure? Contact Camfil to learn how our advanced air filtration solutions can enhance the performance, reliability, and efficiency of your data center operations. Because when it comes to database performance, every detail matters, including the air.

For over 60 years, Camfil has been the trusted partner for organizations that demand clean air solutions. Let us help you build the infrastructure foundation your intelligent databases deserve.

Sources

[^1]: Pavlo, A. (2018). The Future of Database Management: An Interview with CMU’s Andy Pavlo. Two Sigma. Retrieved from https://www.twosigma.com/articles/the-future-of-database-management-an-interview-with-cmus-andy-pavlo/

[^2]: Camfil USA. (2025, April 30). The Growing Need for Better Air Filtration in Data Centers Amid the AI Boom. Clean Air Blog. Retrieved from https://cleanair.camfil.us/2025/04/30/the-growing-need-for-better-air-filtration-in-data-centers-amid-the-ai-boom/

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Thursday, July 10, 2025

Summer is Tough on Air Filters:  Here’s How Commercial Buildings Can Prepare

When summer hits and temperatures soar, our air conditioning systems work overtime to keep us cool. What many people don’t realize is the significant strain on our buildings’ air filters that this causes. Between increased A/C usage, wildfire smoke, and heightened vehicle traffic, summer air quality takes a hit, leaving your filters to handle more dirt, dust, and pollutants than during any other time of the year. 

This article explores how summer affects the performance of your air filters and why upgrading to high-quality filters is a crucial step to protect the health of your building and its occupants.

Increased Airflow from Constant A/C Usage 

Global temperatures in the summer of 2024 were the hottest on record in the last 175 years, according to NASA, and 2025 is forecasted to be similar. [1] 

Your building’s HVAC system keeps employees and guests safe and comfortable during the summer heat, cycling a continuous flow of air to maintain a cool indoor environment. However, this boost in airflow means your air filters have to work harder than usual due to: 

  • Constant Air Movement: Even if the outdoor air is relatively clean, running your A/C throughout the day pushes a much higher volume of air through your system. That means filters are exposed to more particles simply due to the increased airflow. 
  • More Wear and Tear: This constant movement of air doesn’t just bring more dirt; it also reduces the lifespan of your filters as they work to trap an increased amount of dust, pollen, and pet dander within a shorter time span. 

As a result, filters clog faster, reducing their efficiency while increasing pressure drop and forcing the HVAC system to work even harder, which can lead to higher energy bills and wear on sensitive parts of the system. 

Why Air Quality Suffers in the Summer

Even if air quality were to remain consistent as outdoor temperatures increase, the corresponding increase in air conditioning use would strain air filters. However, there are a number of major factors that increase outdoor air pollution, resulting in poor air quality both in and outdoors. [2]

Wildfire Smoke 

Wildfire season in recent years has extended into all four seasons, but dry conditions and high temperatures mean that the worst wildfires often occur during the summer. Wildfires release massive amounts of smoke, ash, and particulate matter into the air.

Standard air filters struggle to handle this influx of smoke and fine particulates, meaning your filters can clog faster, reducing airflow and tanking indoor air quality. Wildfire smoke, carried by wind, can impact areas far from the fires themselves, leading to haze and noticeable air pollution hundreds or even thousands of miles away.

Increased Road Traffic

Summer is peak travel season, with more vehicles on the road producing higher emissions of pollutants such as carbon monoxide, ground-level ozone, and particulate matter. 

Ground-level ozone forms when specific pollutants react chemically in sunlight. These pollutants, such as nitrogen oxides and volatile organic compounds (VOCs), come from a variety of industrial sources, in addition to emissions from driving and refueling cars and trucks.

Standard HVAC filters are only able to capture particulate pollution; gaseous pollutants such as ozone are too small to be captured even by HEPA filters. To target this kind of pollution, molecular filters, which use activated carbon or other activated media to capture pollutants through a chemical process called adsorption, are needed. 

READ MORE: What You Should Do During Ozone Alerts, According to Air Quality Experts 

Arid Weather Conditions

Weather-related factors can increase particulate matter levels in certain areas. Extended dry periods cause dirt, sand, and soil to become loose and dry, unlike their stable, compact state during other seasons. This loose ground is more easily dispersed by wind, vehicles, and foot traffic, and combined with the overall increase in road traffic during the summer, this can potentially double particulate matter concentrations in the area. 

Bonfires and Campfires 

Bonfires and campfires, a common summer activity, can have a major impact on air quality. Burning wood produces incomplete combustion, releasing pollutants like particulate matter (PM), carbon monoxide (CO), volatile organic compounds (VOCs), and other toxins. Fine particulate matter is especially harmful, as it can penetrate deep into the lungs, posing serious risks for those with asthma, COPD, or other respiratory conditions. Fire smoke can also irritate the eyes, nose, and throat, impacting both personal health and overall air quality.

Summer Thunderstorms

Summer thunderstorms create unique weather conditions that can trigger asthma attacks in susceptible individuals. Unlike storms in other seasons, these conditions cause a specific distribution of plant spores and pollen. Downdrafts of cold air concentrate allergens near the storm and carry them into the clouds, where lightning, wind, and high humidity break them into smaller particles. These tiny fragments can bypass the body’s natural defenses and enter the lungs when inhaled. Known as “thunderstorm asthma,” this phenomenon has led to hospitalizations and, in severe instances, deaths. 

Why You Should Consider Upgrading to Premium Air Filters 

The combination of increased A/C use, wildfire smoke, and vehicle traffic during summer makes one thing clear: your standard, inexpensive commercial air filters aren’t enough during this high-demand season. 

Instead of replacing prefilters every quarter and final filters every six months, consider upgrading to premium air filters, specifically designed to handle higher volumes of airflow and finer particles like smoke and smog. Advantages include: 

  • Extended Lifespan:  Higher-quality prefilters can last 9-12 months, compared to three months (or less) and premium final filters can last 24 – 36 months, spanning several higher-pollution seasons. You’ll save time, money, and labor by cutting down on replacements and preventing costly damage to the HVAC system, which can lead to potential system shutdowns. 
  • Better Air Quality:  Premium filters trap more pollutants and allergens, providing cleaner air and all of the benefits that come with it for your building’s occupants. 
  • Improved Efficiency:  By keeping your HVAC system running smoothly, top-tier filters can even reduce your energy use and lower your energy bills. 

Switching to premium air filters isn’t just about convenience; it’s a proactive step to safeguard the health of your company’s employees and guests and ensure your HVAC system maintains operation at peak efficiency despite the challenges of summer air quality. 

To capitalize on the benefits that premium air filters offer, consider consulting with an air filter specialist. These industry experts can assess your specific needs based on your building’s HVAC equipment, its size, occupancy, and geographic location, relying on their decades of commercial air quality experience to recommend the most effective filtration solutions. Engaging with a specialist ensures that your investment in air quality is both strategic and cost-effective, ultimately leading to a healthier environment for everyone in your building. Connect with your local Camfil representative today: https://www.camfil.com/en-us/support-and-services/support/contact-locator 

About Camfil 

The Camfil Group is headquartered in Stockholm, Sweden, and has 29 manufacturing sites, six R&D centers, local sales offices in 35+ countries, and 5,700 employees and growing. We proudly serve and support customers in a wide variety of industries and communities across the world. To discover how Camfil USA can help you to protect people, processes, and the environment, visit us at www.camfil.us.

Sources: 

[1] Younger, S. (2024, September 11). NASA Finds Summer 2024 Hottest to Date. NASA; NASA. https://www.nasa.gov/earth/nasa-finds-summer-2024-hottest-to-date/

[2] Davidson, M. (2024, July 3). Insights from Air Pollution Experts: Do Fireworks Make Summer Air Quality Worse? Clean Air Blog; Camfil. https://cleanair.camfil.us/2024/07/03/insights-from-air-pollution-experts-do-fireworks-make-summer-air-quality-worse/

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Tuesday, July 8, 2025

How High-Efficiency Air Filters Can Help Protect Indoor Air Quality During Wildfire Season

Wildfires are increasingly becoming a threat not only to landscape and property but also to air quality across vast regions. While flames may burn thousands of miles away, the smoke from wildfires can significantly impact the air quality of distant communities. These traveling plumes carry harmful pollutants that degrade outdoor air and infiltrate indoor environments. As the frequency and intensity of wildfires escalate, dangers imposed on indoor air quality (IAQ) and human health have grown.

One of the most harmful byproducts of wildfire smoke is fine particulate matter. These microscopic particles are small enough to penetrate deep into the body, contributing to a range of health issues. Wildfires also release gases like carbon monoxide and volatile organic compounds, which complicate respiratory issues and contribute to ground-level ozone formation. 

Smoke from the recent Canadian wildfires, for example, has spread more than 5,000 miles, reaching parts of Russia and Europe and releasing over 56 megatons of carbon. The smoke concentrations led to poor air quality across several U.S. states, including Michigan, Illinois, Iowa and Wisconsin.

High-efficiency air filtration is one essential strategy for protecting IAQ during wildfire events. Filters with higher Minimum Efficiency Reporting Value (MERV) ratings are designed to capture finer particles, significantly reducing the concentration of smoke and pollutants indoors. When paired with well-maintained HVAC systems, these filters serve as a critical defense against the serious health risks posed by wildfire smoke. 

This blog article explores how climate change is driving the rise in wildfire frequency and intensity, examines environmental and health impacts, and highlights how high-efficiency air filters play a critical role in protecting IAQ. 

Wildfires in the United States – Trends and Impact 

Between 2013 to 2022, the U.S. averaged 61,410 wildfires annually, burning about 7.2 million acres each year.  While more fires occurred annually in the 1990s (averaging 78,600 per year), the total area burned has dramatically increased. In the period between 1984 and 1993, fewer than three million acres were burned each year, while in recent years, that number has risen to more than 8 million acres annually.  In 2024, approximately 8.9 million acres were scorched. 

The Role of Climate Change

This surge in wildfire activity has been linked to climate change. Rising temperatures, declining snowpack, earlier snowmelt, and drier summers may be creating  conditions for more frequent and severe wildfires. While many wildfires are started by humans, climate-driven conditions could fuel their intensity and scale.

Key climate-related drivers of wildfire growth include:

  • Hotter temperatures that dry out vegetation, increasing flammability.
  • Prolonged droughts that reduce soil and plant moisture. 
  • Reduced snowpack and earlier snowmelt, leading to drier landscapes in spring and summer.
  • Wind shifts that accelerate the spread of fires.
  • Heat-stressed forests that are vulnerable to ignition.

Longer Fire Seasons

Climate change has also increased the wildfire season length and frequency. Once largely confined to late summer and early fall, fire seasons start earlier and end later. From 1984-2002, wildfire season typically began in August. Today, it often starts as early as July and can extend into late fall and early winter.

Climate change also contributes to increased wildfire risk, size and intensity. Rising temperatures, prolonged droughts and shifts in precipitation patterns create drier landscapes, making it easier for fires to ignite, burn hotter and spread faster. 

As conditions worsen, the occurrence of megafires that burn over 100,000 acres has increased. Characterized by their intensity, size, duration and scale, these exceptional fires devastate large areas. In 2021, California’s Dixie Fire burned for more than three months, scorching over 1,505 square miles and becoming one of the largest in the state’s history.

Geographic Expansion of Wildfires

While more wildfires occur in the East, larger and more destructive fires typically happen in the West. In 2022, approximately 20,000 wildfires in the western U.S. burned about 5.8 million acres. In contrast, the eastern U.S. saw around 48,000 wildfires, but these only burned 1.8 million acres.

A national wildfire risk assessment identifies California as the most at-risk state, with over 50% of its area classified at risk. The southern and southeastern US, including parts of Texas, Kentucky, Virginia, and the Appalachian states, are also facing increasing wildfire threats, with over 15% of their land considered at risk. 

Smoke Travels Far and Stays Longer

Wildfire smoke can travel hundreds of miles and linger for weeks, depending on wind patterns and atmospheric conditions that can carry smoke across states, countries or even oceans. Temperature inversions can trap smoke near the ground, causing it to linger in an area for extended periods. For instance, the 2023 Canada wildfires produced thick smoke and blanketed much of the U.S. Northeast and Midwest for weeks, causing severe air quality alerts. 

Economic and Environmental Consequences

Wildfires can affect individuals, businesses, governments and ecosystems in different ways:

  • Destroy homes, buildings and vehicles
  • Shutdown transportation networks and roadways
  • Reduce worker productivity
  • Increase hospitalizations 
  • Disrupt local economies, tourism and local businesses
  • Contaminate water sources like rivers and reservoirs
  • Release high amounts of carbon emissions

The 2018 wildfire season in California caused nearly $150 billion in damage, a significant portion derived from health impacts and supply chain impacts. Between 2017 and 2021, the economic loss due to wildfire damage in California reached $722 billion. As a result, many insurers have stopped writing new policies in high-risk areas of the state.

How Wildfires Affect Indoor Air Quality

Wildfire Smoke Composition 

Wildfire smoke contains a complex mix of pollutants, including tiny particles and gases such as carbon monoxide, nitrogen oxides and sulfur oxides. Particle pollution, or particulate matter, is composed of tiny solid and liquid droplets suspended in air. 

Fine particle pollution makes up about 90% of wildfire smoke pollutants, including:

  • Fine particles: <2.5 microns (<5% of the width of a human hair)
  • Ultrafine particles: <1 micron
  • Coarse particles: 2.5 – 10µm

The predominance of fine and ultrafine particles poses respiratory and neurological risks and contributes to climate change due to their ability to stay airborne and travel long distances. 

Indoor Penetration of Smoke

The small particles found in wildfire smoke, especially those less than 2.5microns, can easily penetrate through:

  • Gaps in windows, doors, and vents
  • Open windows and doors
  • Poorly-sealed air conditioners 
  • Porous building materials, especially in older or poorly insulated buildings
  • Natural ventilation systems

Once inside, poor HVAC filtration can allow these particles to accumulate, especially in tightly sealed or poorly ventilated spaces. 

Ventilation is Not Enough

While ventilation is essential for maintaining healthy IAQ under normal conditions, it can worsen indoor air during wildfire events. Opening windows and relying on outdoor air can draw in unfiltered, smoky air. HVAC systems without high-efficiency filters simply recirculate contaminated air throughout a building. 

Outdoor air economizers in large HVAC systems can amplify indoor smoke issues by introducing large amounts of smoke and particulate matter during wildfire seasons. Effective smoke protection combines proper filtration with controlled ventilation, not ventilation alone. 

AQI vs. Indoor Conditions

The EPA created the Air Quality Index (AQI) to monitor outdoor air pollution levels. The AQI reflects the concentration of ground-level ozone, particulate matter, carbon monoxide, sulfur dioxide and nitrogen dioxide outdoors. A higher AQI indicates poorer outdoor air quality.

In contrast, IAQ refers to the quality of air inside buildings such as offices, homes and schools. Even when outdoor AQI reaches hazardous levels, indoor air can be protected if the building is well-sealed, equipped with high-efficiency particulate air (HEPA) or high-MERV filters, and if steps are taken to limit smoke from entering the building (see section 4 below). 

Health Risks of Poor Indoor Air Quality During Wildfires 

Wildfires pose serious health risks, not only for individuals in immediate danger zones but for communities exposed to the widespread smoke and air pollution. The microscopic particles in wildfire smoke can penetrate deep into the lungs and even enter the bloodstream. The severity of health impacts depends on exposure level, duration and individual health conditions. Both short- and long-term impacts are possible. 

Short-Term Health Effects

Even brief exposure to wildfire smoke can trigger a range of symptoms. 

  • Eye and skin irritations
  • Respiratory issues 
  • Asthma and COPD exacerbation
  • Headaches and fatigue
  • Cardiovascular effects and increased heart rate

Long-term Health Concerns

Prolonged or repeated exposure, even at moderate levels, can lead to lasting health consequences.

  • Chronic respiratory conditions
  • Cardiovascular disease
  • Cancer risk 
  • Mental health issues
  • Weakened immune system

Vulnerable Populations

While wildfire smoke can affect anyone, certain groups are particularly at risk:

  • Children and infants
  • Elderly individuals
  • Pregnant people
  • Individuals with asthma, COPD or heart disease

Role of High-Efficiency Air Filters in Protecting Indoor Air Quality 

Understanding Filter Efficiency for Wildfire Smoke

During wildfire events, IAQ can deteriorate quickly due to the influx of fine particulate matter and toxic gases. High-efficiency filters can maintain safe indoor air. The efficiency of filters is rated by their Minimum Efficiency Reporting Value (MERV), a scale that rates filters according to their ability to trap small particles. Filters with MERV 13-16 ratings are recommended for reducing the effects of wildfire smoke on IAQ. For optimal protection, high-efficiency particulate air (HEPA) filters are the gold standard, capturing 99.97% of particles as small as 0.3 microns. Soot particles from wildfires average between 0.4 – 0.7 microns, which are easily captured by these filters.  

Wildfire smoke also contains gases and odors that particle filters cannot capture. Gases are composed of particles that are so small they are more aptly referred to as molecules and can easily pass through the most efficient HEPA filters. Capturing gases requires specialized filters known as molecular filters, sometimes referred to as carbon filters. These filters remove harmful gases, VOCs and other odor-producing chemicals from the air using a filtration process known as adsorption. Identifying the gases present enables the selection of the most effective carbon media for controlling them.

Camfil USA’s Wildfire Air Quality Solutions

Residential Air Filtration Solutions

The most common temporary solution to address odor from wildfire smoke in the home or small offices is the use of CityPleat air filters, which offer 20-50% removal of common gaseous contaminants, ozone. For individual rooms, use the portable CamCleaner CC500 air purifier, which is equipped with a 99.99% HEPA filter to help control fine particulate matter.  

Commercial and Industrial Applications

To effectively protect indoor environments from wildfire smoke and other airborne pollutants, Camfil recommends using a multi-stage air filtration configuration. Start with prefilters rated up to MERV 13A in the initial stage, followed by final filters reaching up to MERV 16A in the second stage. For additional protection, use a three-stage filtration system that includes HEPA filters, which would require specific frame configurations.

This strategy enhances air purification performance and improves cost efficiency. By capturing larger particles early, the final filters last longer, which reduces the frequency of replacements, minimizes energy usage, and cuts down on both maintenance and operational expenses.

Camfil air filters for wildfire smoke mitigation:

  • AQ13 panel filters for single-stage units configured to hold air filters up to 4 inches in depth and supplying air to human-occupied, but non-critical spaces such as offices. 
  • Durafil ES3 V-bank style air filters for final filters in multi-stage units supplying air to human-occupied or production areas not requiring HEPA filtration.
  • Absolute VG V-bank style filters for areas where up to 99.99% @ 0.3 micron HEPA filtration is required and the air handling unit is configured for box-style HEPA filters.
  • XH Absolute filters in an all-metal frame for areas where up to 99.999% @ 0.3 micron HEPA filtration is required and the air handling unit is configured for box-style HEPA filters.
  • Megalam Panel Filters for areas where panel style HEPA and ULPA (99.99% @ 0.3 micron up to 99.9995% @ MPPS) filters are required. 

As wildfires become more frequent and intense, investing in high-efficiency air filters is a key component of a comprehensive air quality strategy. These systems help protect indoor air from harmful microscopic particulates, toxic gases and lingering odors, ultimately reducing both health risks and economic impacts during wildfire events.

Contact us to connect with a Camfil air filtration specialist who can help you develop a customized air quality strategy tailored to your building, people and operations. 

 

¹ https://www.washingtonpost.com/weather/2025/06/06/canada-fires-smoke-maps/

² https://sgp.fas.org/crs/misc/IF10244.pdf

³ https://www.statista.com/topics/13062/wildfires-in-the-us/

https://www.statista.com/statistics/203990/area-of-acres-burnt-due-to-wildland-fires-in-the-us/

https://www.statista.com/topics/13062/wildfires-in-the-us/#topicOverview

https://www.epa.gov/climate-indicators/climate-change-indicators-wildfires

https://www.amwins.com/resources-insights/article/wildfire-in-the-u.s.-not-just-a-problem-for-western-states

https://news.uci.edu/2020/12/07/uci-tsinghua-u-californias-2018-wildfires-caused-150-billion-in-damages/

https://www.amwins.com/resources-insights/article/wildfire-in-the-u.s.-not-just-a-problem-for-western-states

¹⁰ https://www.camfil.com/en-us/insights/air-quality/wildfire-smoke-filter-solution-guide

¹¹ https://learn.kaiterra.com/en/air-academy/whats-in-wildfire-smoke

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Thursday, July 3, 2025

Camfil Denver: Cleanroom Air Filtration Solutions for Electronics & Optics Facilities

Introduction: Clean Air is Critical to Colorado’s High-Tech Manufacturing Economy

Denver and the surrounding Front Range region are home to a growing base of electronics, semiconductor, aerospace, and optics manufacturers. These highly sensitive operations require cleanroom-grade environments to maintain product integrity and meet industry standards. With Colorado’s dusty, dry climate and variable altitude-driven pressure changes, airborne particles pose a constant threat to the integrity of manufacturing processes. Camfil’s engineered air filtration systems help electronics and optics manufacturers in Denver, Boulder, Colorado Springs, and Fort Collins maintain ISO compliance, reduce defects, and improve production reliability.

Why Air Quality Matters in Electronics & Optics Facilities

While clean air might seem like an unnecessary luxury to some, it’s a non-negotiable production input for the electronics and optics sector for the following reasons:

  • Sub-micron dust particles can cause contamination in chip manufacturing and optical lens production 
  • Electrostatic discharge (ESD) increases in dry climates like Colorado, worsened by unfiltered air 
  • Cleanroom compliance is required for ISO Class 5–8 in PCB, laser, and photonics industries 
  • Humidity and pressure shifts challenge HVAC system consistency at elevation 
  • Product recalls and QA failures from airborne contaminants are extremely costly

Challenges for Electronics Facilities in the Denver Region

Cleanroom readiness requires an integrated filtration plan tailored to the realities of Denver’s mountain climate:

  • Elevated dust loads from outdoor air and frequent construction in urban zones 
  • Seasonal wildfire smoke impacting HVAC air intakes 
  • Variable climate affects filter media durability and performance 
  • Legacy facility layouts often lack adequate airflow zoning or pressurization systems

How Camfil’s Air Quality Solutions Improve IAQ in Electronics Production Facilities

1. Cleanroom HEPA & ULPA Filters

  • Certified filters for ISO Class 5–8 environments 
  • Capture particles as small as 0.12 microns 
  • Used in wafer fabs, lens polishers, SMT lines, and optics assembly labs 

2. Low-Pressure HVAC Pre-Filters

  • Trap airborne dust, carbon, and textile fibers before cleanroom intake 
  • Designed to work efficiently in Colorado’s thinner air pressure 

3. ESD-Resistant Modular Filter Housing

  • Supports filtration without generating friction-based charge buildup 
  • Ideal for electronics assembly lines and robotics rooms 

4. Customized Airflow Planning

  • Camfil provides on-site assessments and modeling for clean zones 
  • Helps prevent contamination and reduce filter change frequency

Benefits of Camfil Solutions for High-Tech Manufacturers

  • Protection for sensitive photonics, semiconductors, and chip-level processes 
  • Reduced product rework and scrap from airborne contamination 
  • Extended equipment lifespan and stable HVAC performance 
  • Support for ISO, ANSI, and cleanroom audit requirements 
  • Trusted by facilities in Denver, Boulder, Fort Collins, and Colorado Springs

FAQs Answered By Denver IAQ Experts

Q: Do Camfil filters meet ISO cleanroom standards?
A: Yes. Camfil HEPA/ULPA filters are rigorously tested per IEST CC RP-CC001, ISO 29463 and EN 1822 for cleanroom certification.

Q: Can Camfil help design filtration for new facilities in Colorado?
A: Absolutely. Camfil provides site audits, airflow modeling, and filter selection tailored to local environmental factors.

Site-Specific Insights from Denver Camfil Air Filtration Experts

Colorado’s electronics and optics sector relies on pristine environments to power innovation. Camfil provides certified cleanroom air filtration systems designed to tackle high dust, altitude challenges, and ISO standards head-on. Whether you’re running a microelectronics fab or a laser optics lab, our Denver-based experts are ready to support your air quality strategy.

Contact Camfil Denver Experts

About Camfil 

For over 50 years, Camfil has been developing clean air solutions that enhance well-being, improve productivity, and minimize environmental impact. As a global manufacturer of commercial and industrial air filtration systems, Camfil is committed to conserving resources while benefiting both businesses and the planet. Headquartered in Stockholm, Sweden, Camfil operates 30 manufacturing sites, six R&D centers, and has a presence in over 35 countries with 5,600 employees worldwide. Learn more about creating cleaner, healthier indoor air at www.camfil.us.

Media Contact 

Lynne Laake 

Camfil USA Air Filters 

Phone: 888-599-6620 

Email: Lynne.Laake@camfil.com 

 Contact Us

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