Air Quality May Impact Aspects of Emotional Intelligence, According to New Study

Air pollution has long been recognized as a leading environmental health risk, causing respiratory and cardiovascular diseases. But recent research sheds light on another critical, lesser-known impact—its effect on brain health, specifically cognitive function and emotional intelligence. This blog explores the science behind these findings, the implications for mental health, and practical tips for managing air quality in personal and professional environments.

The Basics of Air Quality

Air quality refers to the degree of pollution present in the air, influenced by factors such as emissions, weather conditions, and natural disasters.

Air pollution can broadly be categorized into two types: molecular (or gaseous) and particulate. Molecular pollutants include gases such as carbon monoxide (CO), sulfur dioxide (SO₂), nitrogen oxides (NOₓ), and volatile organic compounds (VOCs). These gases are often emitted from industrial processes, vehicle exhaust, and the burning of fossil fuels. They can have significant effects on respiratory health and contribute to issues like smog and acid rain.

Particulate pollutants, also commonly referred to as particulate matter or particle pollution, consist of tiny solid particles or liquid droplets suspended in the air, known as particulate matter (PM). They are typically classified based on their size: PM10 (particles with a diameter of 10 micrometers or less), PM2.5 (particles 2.5 micrometers or less) and PM1 (particles 1 micrometer or less). Particulate pollutants can originate from sources like construction activities, wildfires, and industrial emissions. These particles are particularly concerning as they can penetrate deep into the lungs and even enter the bloodstream, posing serious health risks.

Understanding these two types of pollution is essential for developing effective strategies to improve air quality and protect human health.

Study Shows Air Pollution Impacts on Cognitive Processes, Including  Ability to Recognize Emotions

A 2025 study published in the peer-reviewed journal Nature Communications (2025) exposes the correlation between air pollution and diminished cognitive capabilities.

Cognitive function refers to various mental processes essential for daily activities. Supermarket shopping is a great example of how these functions work independently and together. Executive function, particularly selective attention, helps with decision-making and staying focused on your shopping list while ignoring distractions and avoiding impulse purchases. Working memory acts as a temporary space for holding and processing information, like comparing prices or brands to make smart choices. Socio-emotional cognition allows us to recognize and understand emotions, ensuring smooth social interactions and appropriate behavior while shopping. These cognitive skills, while distinct, operate in harmony to complete everyday tasks. Examining each function individually helps identify which are most affected by air pollution, paving the way for targeted interventions and strategies to build resilience.

The study involved exposing participants to high levels of particulate matter and tracking their cognitive and emotional responses four hours later. Conditions were blinded (meaning that study participants did not know which air quality conditions they were exposed to) so that knowledge or perception of air pollution exposure didn’t confound results. Findings showed impairments in key brain functions:

• Selective attention – the ability to focus on specific tasks while ignoring distractions.
• Emotion recognition – the capacity to interpret and respond to emotional cues in the environment, such as the ability to

Selective Attention

Selective attention is the ability to focus on specific stimuli for further processing while ignoring irrelevant or distracting inputs. Distractions can come from external sources, like background noise or visual clutter, or internal ones, such as wandering thoughts or habitual responses that interfere with the task at hand. Selective attention is essential for complex analytical tasks, such as learning a new language or solving math problems, but also for basic daily tasks, such as choosing what to eat or engaging in conversation.

In the study, selective attention was measured by assessing participants’ reaction time (RT) in seconds. The change in reaction times (before exposure to either the clean air condition or the pollution condition and after exposure) was analyzed, and researchers found a statistically significant increase in reaction time (indicating a decrease in selective attention) under the pollution condition, and a statistically significant decrease in reaction time (indicating an increase in selective attention) after exposure to clean air. On average, post-exposure reaction times in the pollution condition group were 10 milliseconds slower than in the clean air group.

Emotion Recognition

In the study, researchers focused on emotion discrimination, which is the ability to identify and distinguish emotions conveyed through facial expressions, sounds, body language, and other signals. Emotion discrimination is a critical skill for effective social interaction and communication. Being able to accurately identify and interpret emotions allows individuals to respond appropriately to others’ needs, fostering empathy and strengthening relationships. This skill is particularly important in collaborative environments, where understanding emotional cues can help to de-escalate conflicts, build trust, and enhance teamwork; therefore, it is crucial in both personal and professional relationships.

The study found that acute exposure to PM pollution significantly impaired participants’ ability to recognize emotional expressions compared to clean air exposure, as indicated by a larger performance decline post-exposure. Though a significant main effect of session time was found (meaning that participants’ emotion recognition was generally better the first time it was tested), the decline in performance under the clean air condition was not found to be statistically significant.

Implications of the Study’s Results

Other functions, such as working memory, showed resilience to short-term pollution exposure. This suggests varying vulnerabilities within our brain functions—an area ripe for further exploration.

The authors propose two potential mechanisms for these effects:

1. Direct pathway — Particulate matter may directly reach the brain through the olfactory system or cross the blood-brain barrier.
2. Indirect pathway — Systemic inflammation triggered by lung exposure to pollutants may harm brain tissue over time.

These findings underscore the pressing need to address air pollution and its multifaceted impact, particularly in urban environments with high PM2.5 levels.

Read More: The Link Between IAQ and Productivity 

Managing Air Quality for Health and Well-Being

Fortunately, not all is lost. Understanding and mitigating the influence of air quality on brain health can empower individuals and institutions to protect themselves. Here are actionable steps to improve air quality and safeguard your cognitive and emotional well-being:

1. Monitor Air Quality Levels

Sources such as AirNow.gov provide real-time air quality updates based on aggregated data from thousands of air quality monitors across the United States. Individuals can use these services to plan activity for times when pollution levels are lower. 

2. Ask Facility Managers Questions  

Concentrations of air pollutants can be up to fifty times higher indoors than in the surrounding outdoor area. Ask your employer or facility manager at your school if they’ve appointed a CAO, Chief Airgonomics Officer. This is the person in an organization with the responsibility to ensure all reasonable steps are being taken to protect the occupant’s health from poor indoor air quality.  During extended breaks, for example, it’s not unreasonable to ask the facility manager to explain what steps are taken to maintain acceptable indoor air quality. 

3. Minimize Exposure During High Pollution Events

Avoid outdoor exercises or strenuous activities near high-traffic areas during times of increased pollution, like wildfires or smoggy days.

4. Make Ventilation a Priority

To improve indoor air quality, facilities managers can collaborate with Camfil’s air quality specialists to monitor indoor air quality and determine specific focus areas for improving it. 

Here are measures that can be integrated into building strategies:

• When planning new construction, include in the design advanced HVAC systems with the capability to provide high indoor air quality. For existing systems, educate yourself on its capabilities and select air filters that deliver the optimal filtration solution for your facility.
• Work with a quality air filtration supplier who can assist you in developing the appropriate maintenance schedule.  
• Educate employees about air pollution’s effects and mitigation strategies and encourage open dialog.

About Camfil Clean Air Solutions

For more than half a century, Camfil has been helping people breathe cleaner air. As a leading manufacturer of premium clean air solutions, we provide commercial and industrial systems for air filtration and air pollution control that improve worker and equipment productivity, minimize energy use, and benefit human health and the environment. We firmly believe that the best solutions for our customers are the best solutions for our planet, too. That’s why every step of the way – from design to delivery and across the product life cycle – we consider the impact of what we do on people and on the world around us. Through a fresh approach to problem-solving, innovative design, precise process control, and a strong customer focus we aim to conserve more, use less and find better ways – so we can all breathe easier.

The Camfil Group is headquartered in Stockholm, Sweden, and has 30​ manufacturing sites, six R&D centers, local sales offices in 35+ countries, and about 5,600 employees and growing. We proudly serve and support customers in a wide variety of industries and in 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/ 

 

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Media Contact: 

Lynne Laake 

Camfil USA Air Filters 

T: 888.599.6620 

E: Lynne.Laake@camfil.com

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Sources:

https://go.nature.com/4hICbZ3

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Molecular Air Filtration for Data Centers A Comprehensive Video Series

Data centers are the foundation of the digital world, hosting vast amounts of data and ensuring uninterrupted services for millions of users. With the rapid advancement of AI, the demand for data centers is skyrocketing, making air quality management more critical than ever.

Why Molecular Air Filtration for Data Centers Will Grow

As AI-powered applications require more computational power, data centers are expanding rapidly, increasing their reliance on backup generators, high-density servers, and complex cooling systems. These factors contribute to the accumulation of molecular contaminants, which can cause corrosion, downtime, and equipment failures if not properly managed.

However, an invisible threat lurks within these critical environments—molecular contaminants. These airborne pollutants, including nitrogen dioxide and ozone, are 1,000 times smaller than what HEPA filters can capture. Left unchecked, they corrode sensitive electronic equipment, leading to costly repairs and service disruptions.

To combat this, Camfil USA has developed cutting-edge molecular air filtration solutions, including the AirImage COR, a real-time corrosion detection system, and the CityCarb I, a dual-function molecular filter.

This blog explores the five-video series on Molecular Air Filtration for Data Centers, diving deep into the dangers of gaseous contaminants and the solutions Camfil provides.

Watch the Full Playlist Here: Molecular Air Filtration for Data Centers

1. Identifying Corrosion Dangers in Data Centers

Watch Video: Camfil’s AirImage-COR Identifies Corrosion Dangers

Understanding the Threat

Most people associate air filtration with removing dust and particulate matter, but gaseous contaminants pose an equal risk in data centers. These molecular pollutants are invisible, odorless, and highly reactive, leading to electronic corrosion over time.

How AirImage-COR Helps

Camfil’s AirImage-COR is a real-time corrosion monitoring system that integrates seamlessly with building management systems (BMS). It provides instant readings on corrosive gas levels, allowing operators to take proactive measures before damage occurs.

Real-time detection of molecular contaminants
Seamless integration with existing infrastructure
Actionable insights for corrosion prevention

If AirImage-COR detects high levels of corrosive gases, Camfil offers advanced molecular filtration solutions to remove them effectively.

2. What Are Particulate Matter and Gaseous Contaminants?

Watch Video: Understanding Airborne Pollutants in Data Centers

Particulate Matter vs. Molecular Contaminants

Air pollution comes in two main forms:

Type	Description	Common Examples	Filtration Solution
Particulate Matter (PM)	Solid or liquid particles suspended in air	Dust, dirt, soot, PM1,  PM2.5, PM10	HEPA & MERV A-rated filters
Molecular Contaminants	Gaseous pollutants, much smaller than PM	Ozone, nitrogen dioxide, sulfur dioxide	Molecular filtration (adsorption)

Why Molecular Contaminants Matter

While traditional air filters can capture dust and airborne particles, they cannot remove molecular contaminants. In data centers, these gases accumulate undetected, accelerating corrosion and increasing the risk of equipment failure.

3. How Corrosion Damages Electronic Equipment

Watch Video: The Hidden Dangers of Corrosion

What Is Corrosion?

Corrosion occurs when reactive gases interact with metal surfaces, forming oxidation layers that degrade electronic performance.

A well-known example is the Statue of Liberty, which is slowly turning green due to copper corrosion over decades. In data centers, this process happens much faster, potentially within months!

How AirImage-COR Measures Corrosion Risk

The AirImage-COR assigns a G-Rating based on the severity of corrosive gas exposure:

Rating	Corrosion Risk	Impact on Equipment
G1	Minimal risk	No immediate action needed
G2	Gases detected	Source should be identified
G3	High risk	Likely equipment damage
GX	Extreme levels	Only specialized equipment survives

By using real-time monitoring, data centers can help prevent failures before they happen.

4. Adsorption vs. Absorption:  How Molecular Filtration Works

Watch Video: Adsorption or Absorption?

How Camfil Uses Adsorption Technology

Camfil’s molecular filtration solutions use activated carbon, a highly porous material that traps and removes gaseous contaminants from the air. This ensures data centers are protected from corrosive gases like ozone and nitrogen dioxide.

5. Can You Capture a Molecule? The CityCarb I Solution

Watch Video: CityCarb I – The Ultimate Molecular Filtration Solution

Introducing CityCarb I:  A Dual-Function Filter

When data centers need reliable molecular filtration, Camfil’s CityCarb I is the go-to solution.

High MERV rating:  Captures particulate matter (PM2.5, PM10)
Molecular filtration:  Removes corrosive gases
Extended lifespan:  Reduces replacement costs

Maximizing Filter Performance with AirImage COR

By pairing CityCarb I with AirImage-COR, data centers can:
Detect when molecular filters need replacing
Prevent premature wear on equipment
Ensure continuous air quality monitoring

Conclusion:  Future-Proofing Data Centers with Molecular Filtration

Corrosion is an invisible yet devastating threat to data centers. While HEPA and MERV filters are effective against particulate matter, they do not stop gaseous pollutants.

By implementing Camfil’s AirImage-COR and CityCarb I, data centers can:
Monitor and detect corrosive gases in real-time
Take preventive action before damage occurs
Extend the lifespan of critical electronic equipment
Reduce maintenance costs and downtime risks

Watch the Full Video Playlist Here:Molecular Air Filtration for Data Centers

Want to learn more? Visit Camfil’s website for more information on molecular filtration solutions! 

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Keeping Students Healthy: How High-Quality HVAC Filters Combat Winter Illnesses in Schools and Universities

During the winter in colder climates, schools and universities face heightened challenges in maintaining the health of building occupants because students, faculty and staff spend more time together indoors. Problems with HVAC systems can trigger a host of health problems, such as the airborne spread of viruses and bacteria, as well as inducing asthma and allergies. In turn, these medical conditions increase absenteeism and reduce academic performance. The U.S. Environmental Protection Agency (EPA) says improvements in school environmental quality can enhance academic performance, as well as teacher and staff productivity and retention.

High-quality air filters play a critical role in ensuring healthy learning environments. Read on to learn about the significance of indoor air quality (IAQ) in educational settings, the decision-making process for operating effective HVAC systems and practical solutions for combating winter illnesses through advanced air filtration technology.

Why IAQ Matters in Educational Settings

Poor IAQ has a significant effect on academic performance. Research shows that high levels of indoor air pollution and poor ventilation negatively affect all nine cognitive function domains that are essential for learning and performing complex tasks: 

• Basic Activity Level Overall decision making.
• Applied Activity Level Making decisions oriented toward overall goals.
• Focused Activity Level Focusing on the current task or situation. 
• Task Orientation Making decisions that contribute to task completion. 
• Crisis Response Planning, strategizing and staying prepared in emergency situations. 
• Information Seeking Gathering necessary information from a variety of available sources. 
• Information Usage Using provided and gathered information to reach goals. 
• Breadth of Approach Considering multiple dimensions in decision-making to achieve goals. 
• Strategy Optimizing information to reach well-integrated solutions.

According to the American Lung Association, children in classrooms with higher outdoor air ventilation rates and cleaner IAQ tend to perform better on standardized tests compared to those in poorly ventilated classrooms. This improvement is attributed to lower carbon dioxide levels and a reduced risk of infectious disease transmission. Unfortunately, the same studies revealed that classroom ventilation rates often fall below the minimum standards required for healthy indoor air. Moreover, many schools have outdated or failing HVAC systems in need of upgrades.

How Poor Air Quality Impacts Health and Wellness

Insufficient ventilation and air filtration in classrooms and other densely occupied spaces allow airborne pathogens to accumulate, heightening the risk of illness transmission. Winter in cold climates exacerbates IAQ challenges due to reduced ventilation from closed windows and doors and extended periods of indoor activities that enable contaminants to build up. 

According to the American Society of Microbiology, aerosols — minute airborne particles capable of carrying viruses — serve as a pathway for viral transmission within buildings. These microbe-laden aerosols can originate from various sources, including breathing, and result in illness.

Unlike larger respiratory droplets, which are heavier and tend to fall from the air relatively quickly, aerosols can linger in the air for minutes to hours, extending the window of potential exposure. This risk is influenced by factors such as air filtration, circulation and ventilation within a space. For example, schools may have higher concentrations of airborne pathogens due to the presence of large groups of people gathered for extended periods, often with different groups of people cycling in and out of rooms, This frequent turnover means that new individuals may be exposed to lingering aerosols, while also potentially introducing additional pathogens. Together, these factors create conditions that can facilitate the spread of airborne illnesses in schools unless effective ventilation, air filtration and hygiene practices are in place.

The movement of hundreds to thousands of students, teachers and staff through classrooms, cafeterias, laboratories, lecture halls, shared recreational spaces and dormitories constantly introduces particulate matter—such as dust, pathogens and mold spores—into the air. This pollution is further dispersed throughout the space by foot traffic and the HVAC system. Without proper air filtration and ventilation, these airborne contaminants can circulate unchecked, posing health risks to everyone in the facility.

Who Makes HVAC and Clean Air Decisions in Schools and Universities?

To ensure good IAQ several key stakeholders at schools and universities must work together to define and execute effective air quality programs. Facility managers and maintenance supervisors oversee HVAC system performance, while CFOs and business administrators balance costs with efficiency. Other personnel that might be involved include building engineer, operations manager, purchasing agent environmental health and safety manager, and school wellness center director. 

Clean Air Strategies 

IAQ strategies at schools and universities should prioritize the best practices in ventilation and air filtration to reduce airborne particles, volatile organic compounds (VOCs) and other pollutants that degrade air quality. Ventilation systems play a critical role in maintaining healthy indoor environments by removing stale air and introducing fresh air, effectively diluting and displacing contaminants. Meanwhile, air filters complement ventilation by capturing airborne pollutants, preventing them from circulating within the environment.

Given the diversity of buildings and spaces on school campuses, a one-size-fits-all air filtration solution is not effective. Instead, a customized approach is essential. This involves evaluating the type of air handling equipment in use, local environmental conditions, occupancy levels and the specific requirements for compliance with state, local and school regulations. This tailored strategy ensures the optimal selection and performance of air filters across various facilities.

Decision-Making and Implementation Challenges

Decision-makers responsible for IAQ in schools and universities face significant challenges as they work to create healthy, safe learning environments. Budget limitations are often a primary concern, with many institutions struggling to secure funding for IAQ improvements amid competing demands for resources. For example, public schools frequently face tight budgets, leaving limited room for investment in modern HVAC systems or air purification technologies. Balancing short-term costs with long-term benefits can be challenging when initiating IAQ improvements.

Many school and higher-education administrators, teachers, staff and parents may lack a full understanding of the critical role IAQ plays in student health, learning and overall well-being. Awareness campaigns and educational initiatives are essential to highlight these connections. However, progress can be hindered by resistance to change, fear of classroom disruption or skepticism regarding the effectiveness of upgrades.

Although federal U.S. agencies like the Centers for Disease Control and Prevention (CDC) and the EPA offer guidance, there is no standardized national policy addressing IAQ in schools. State and local regulations vary significantly, leading to uneven implementation.

School facilities often face the challenge of managing multiple HVAC systems, each requiring consistent upkeep. Even in schools with appropriate HVAC systems, proper maintenance — such as replacing filters, cleaning ducts and monitoring performance — is critical. Unfortunately, these tasks are frequently overlooked due to staffing limitations or competing priorities.

These issues highlight the need for increased awareness, stronger policies and adequate funding to improve IAQ in educational environments. 

Strategies for Success

Consulting with an air filtration expert who specializes in educational facilities can help identify the best strategies for HVAC filter selection, replacement and preventive maintenance. These measures not only improve IAQ but also reduce long-term costs. Such collaboration will also help to ensure that the air filters are properly rated to capture a range of particle sizes, including large, small, nuisance and hazardous particles. Even the most advanced HVAC systems cannot effectively purify the air without correctly selected and installed filters designed for the specific application.

How to Choose the Right Air Filters for Educational Facilities Institution

Selecting the right air filters for educational facilities is a crucial step in maintaining a healthy and productive environment for students, staff and visitors. For optimal performance and cost-efficiency, facilities managers should assess their current HVAC system capabilities, evaluate specific air quality requirements, and implement appropriate air filtration solutions tailored to each area’s function and occupancy level. Consider the following steps to guide informed decisions for improved IAQ and system efficiency.

Assessment 

• Identify potential pollutants (e.g., dust, allergens, volatile organic compounds).
• Evaluate current HVAC capabilities.
• Review system design and efficiency.
• Assess airflow capacity and compatibility with high-efficiency filters.
• Analyze air quality needs based on building usage and occupancy.
• Determine the frequency and ease of filter replacement.
• Evaluate the availability of resources for preventive maintenance.

Recommendations by Space Type

Non-Critical Spaces

• Examples:  Offices, hallways, and common areas.
• Recommendation:  Use standard filters capable of capturing common airborne particles like dust and pollen.

Occupied Areas

• Examples:  Classrooms, lecture halls and study spaces.
• Recommendation: Use air filters designed for final-stage filtration to ensure clean, breathable air for occupants.

Critical Spaces

• Examples:  Laboratories, research facilities and healthcare training rooms.
• Recommendation:  Use HEPA filters or equivalent high-efficiency options to capture fine particles and hazardous contaminants, ensuring a sterile environment where required.

Using High-Quality HVAC Filters

There is a common perception that improving IAQ is too expensive for schools, particularly those with limited budgets. While certain upgrades may require upfront investment, schools can adopt cost-effective strategies, such as regular system maintenance and the use of long-life air filters. These practices can reduce replacement frequency, lower energy consumption and enhance overall system efficiency.

In educational facilities, it is common to use multiple HVAC systems, each fitted with several air filters. Budget limitations often lead staff to select the most affordable filters that meet basic operational needs. However, this cost-conscious approach can backfire, as low-cost filters tend to clog quickly, restrict airflow and consume more energy. As a result, these filters often need to be replaced three to four times annually, leading to substantial ongoing expenses.

A more cost-effective air filtration strategy for schools involves investing in long-lasting, high-efficiency filters. Although these filters have a higher upfront cost, they maintain superior performance over an extended period, requiring far fewer replacements than standard filters. Over time, this significantly reduces the overall expenses associated with filter management compared to the frequent replacement of cheaper, less durable options.

In addition, long-life filters are designed to optimize airflow, reducing strain on HVAC systems and improving energy efficiency. These performance benefits help to lower energy consumption and utility bills and decrease the labor required for system maintenance due to the filters’ extended service life. Additionally, the reduced replacement frequency minimizes landfill waste, supporting more sustainable operations.

What Makes a High-Quality Filter?

Air filters are rated on their ability to trap small particles, using the MERV (Minimum Efficiency Reporting Value) system. Ideally, schools and universities should use air filters with a MERV rating between 13 and 16, and use filters labeled with a MERV-A rating. Filters indicating their MERV A value means they will maintain that efficiency value for their entire service life.

High-efficiency particulate air (HEPA) filters can capture a minimum of 99.97% of particles as small as 0.3 microns. Ultra-low penetration air (ULPA) filters remove 99.999% of particles down to 0.12 microns, offering an additional layer of protection for the most critical environments. 

Air filtration experts frequently suggest a multi-stage filtration system incorporating prefilters in the first stage up to MERV 13A filters and final filters in the second stage up to MERV 16A. If the system is capable and designed with the specialized frames required to hold HEPA filters, a three-stage system may be required.  These multi-stage units are more effective at removing contaminants like allergens, mold and odors. This approach helps to achieve optimal air purification and is cost-effective because it extends the lifespan of the final filters. As a result, maintenance and operational costs, including energy expenses, are reduced, and the time between filter replacements or cleanings is extended.

Camfil Air Filtration Solutions Routinely Used in Schools and Universities

• Air filters rated a minimum of Merv 13/13A to capture an average of 85% of particles 1 micron and larger installed in HVAC systems.  
• 30/30 Dual 9 or Farr 30/30 panel filters for prefiltration in multi-stage units.
• AQ13 panel filters for single stage units configured to hold air filters no greater than 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. 
• CamCleaner CC500 portable air purifier with HEPA filtration. 

Prioritizing IAQ is essential for fostering healthier learning environments in schools and universities. High-quality HVAC filters are a cost-effective, long-term solution to combating airborne illnesses and reducing absenteeism.

Contact Camfil today for expert guidance on improving IAQ at your institution.

 

¹ Indoor Air Quality in High Performance Schools, EPA, https://www.epa.gov/iaq-schools/indoor-air-quality-high-performance-schools#how 

² Everything You Need to Know About Air Quality in K-12 Schools for the 2024-2025 Academic Year, Camfil,  https://cleanair.camfil.us/2024/10/09/everything-you-need-to-know-about-air-quality-in-k-12-schools-for-the-2024-2025-academic-year/ 

³ Air Quality Considerations in Schools for the 2023-2024 School Year, Camfil, https://cleanair.camfil.us/2023/08/11/air-quality-considerations-in-schools-for-the-2023-2024-school-year/ 

⁴ How Your School’s Indoor Air Quality Affects Health and Learning, American Lung Association, https://www.lung.org/blog/schools-indoor-air-quality-faqs 

⁵ How Viruses Spread Indoors and What to Do About It, American Society of Microbiology, https://asm.org/articles/2023/november/how-viruses-spread-indoors-what-to-do-about-it 

⁶ Best Air Filters for Universities and Colleges – How This Swedish Air Filtration Company is Helping American Colleges Boost Air Quality and Safety, Camfil, https://cleanair.camfil.us/2025/01/15/best-air-filters-for-universities-and-colleges-how-this-swedish-air-filtration-company-is-helping-american-colleges-boost-air-quality-and-safety/ 

⁷ Strategies to Improve Indoor Air Quality Throughout the University Campus, Camfil, https://cleanair.camfil.us/2024/08/28/strategies-to-improve-indoor-air-quality-throughout-the-university-campus/

⁸ Overcoming Barriers to Healthy Indoor Air Quality in K-12 Schools, Camfil, https://cleanair.camfil.us/2024/06/13/overcoming-barriers-to-healthy-indoor-air-quality-in-k-12-schools/ 

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Best Air Filters for Universities and Colleges – How This Swedish Air Filtration Company is Helping American Colleges Boost Air Quality and Safety

The air you breathe impacts everything from your health to your ability to focus. For universities and colleges—where thousands of students, faculty, and staff spend most of their time and even live—air quality is more than just a comfort issue; it’s a key component of health, productivity, and safety.

Recent concerns about airborne pathogens and environmental pollutants have put a spotlight on the importance of air filtration. Poor air quality can exacerbate allergies, spread illnesses, and lower cognitive function, all of which can negatively affect academic performance and student satisfaction. Ensuring clean air in student housing, lecture halls, libraries, and gyms has become an essential safeguard for campus health and safety.

This guide explores the unique air filtration needs of academic environments, what to consider when choosing air filters, and the best products to ensure optimal air quality in universities and colleges.

Identifying University and College Air Quality Needs

The first step in choosing effective air filtration products is to identify air quality needs. Every university or college campus is unique, with varying building designs, spaces, and uses that create diverse air quality requirements.

High Traffic Areas

Thousands of students moving in and out of classrooms, cafeterias, and dormitories means that particulate matter (including dust, pathogens, and mold spores) is constantly being introduced into the air stream. This pollution is then moved around the space by both foot traffic and the HVAC system itself. Without adequate air filtration, these can circulate freely, impacting the health of everyone on campus.

Variety of Building Uses

Universities and colleges often contain a mix of residential buildings, laboratories, lecture halls, and shared recreational spaces. Laboratories may require highly specialized filtration systems for keeping chemical contaminants contained and protecting equipment, while solutions for removing mold and allergens from the air are a top priority for housing and libraries.

Large HVAC Systems

Many large academic buildings use centralized HVAC systems to manage airflow. These large systems require filters capable of handling substantial air volume while maintaining energy efficiency and performance.

Health and Safety Standards

Strict compliance with health, safety, and energy regulations adds another layer of consideration. Universities must balance effectiveness, cost, and regulatory compliance in their air filtration choices.

Geographical Considerations

Additional factors such as the rurality of the campus’ location, proximity to large roads or industrial facilities, and even how many students have brought their cars to school with them all impact an institution’s specific air filtration needs.

Key Factors in Choosing the Best Air Filters

To address the diverse air quality needs of colleges, facilities management and building coordinators need to evaluate several critical factors when selecting air filters:

1. Efficiency Ratings Matter 

Air filters are rated on their ability to trap small particles, using the MERV (Minimum Efficiency Reporting Value) system. Ideally, universities should look for a MERV rating higher than 13, and use filters labeled with a MERV-A rating,  such as MERV 13/13A. Filters with their MERV A value published indicates they will maintain that efficiency value for their entire service life.

Universities should aim for filters with a MERV-A rating between 13 and 16, as these can capture airborne particles like viruses, allergens, and bacteria without overly taxing HVAC systems.

2. Durability and Lifecycle

Frequent filter replacements can drive up costs and maintenance workload. Long-lasting filters are a smart investment, particularly for facilities with extensive HVAC systems. Ask the supplier to provide service life guarantees. 

3. Energy Consumption 

High-performance filters can sometimes increase energy consumption by restricting airflow. Look for options designed for energy efficiency without compromising filtration quality to reduce your campus’s carbon footprint and electricity bills. Ask the supplier to provide an energy cost analysis for the recommended filtration solution. 

4. Application-Specific Needs 

Filter selection should be tailored to the type of building or space and conform to local or school efficiency requirements. For example:

• Lecture Halls and Recreational Spaces:  High-traffic spaces benefit most from air filters that target particulate matter with a minimum efficiency of MERV 13.
• Classrooms and Offices:  Small, enclosed spaces should prioritize filters that help reduce the spread of communicable diseases with a minimum efficiency of MERV 14A.
• Student Housing:  Filters that reduce allergens and mold are crucial for dormitories and housing. If the HVAC system is configured to hold air filters at least 6 inches in depth, consider a minimum of MERV 14A.
• Laboratories:  Require filters capable of handling volatile or chemical contaminants, and/or filters that keep the air as pure as possible to avoid harming sensitive equipment or interfering with research results. High-efficiency filters with both particulate and molecular capabilities are a good option. HEPA filters may be required in some laboratories and research spaces.

5. Cost and Budget Considerations 

Universities operate on tight budgets, so the overall expenses—initial costs, maintenance, and operational energy costs—must be considered. Request that the filter supplier provide a campus-wide total cost of ownership report. 

Practical Tips for Maintaining Air Quality on Campus

Investing in the right air filters is essential, but ongoing maintenance and best practices are equally critical to ensuring long-term air quality. Here are key strategies:

• Regular Maintenance:  Create a robust filter replacement schedule to maintain optimal performance.
• Monitor Air Quality:  Use air quality monitors to track particulates and pollutants in real-time. 
• Optimize HVAC Systems:  Regularly inspect and clean your HVAC systems to maximize filtration efficiency. 
• Communicate with Stakeholders:  Work alongside student affairs professionals to educate staff and students about the importance of maintaining good air quality.

Recommended Air Filtration Products from Camfil

Camfil is a trusted industry leader in air filtration solutions, offering products that meet the diverse needs of universities and colleges. Here are some top picks for campus use:

• Camfil Clean Air Solutions Premium Air Filters.  High-performance, energy-efficient filters designed for large-scale HVAC systems. Available with MERV ratings up to 16 for comprehensive protection.
• Durafil ES3 Filters.  Ideal for dormitories and office buildings, these advanced filters offer high dust-holding capacity to reduce maintenance frequency.
• CC500 Air Purifier.  A portable option for smaller rooms—great for faculty offices, meeting spaces, laboratories, or locker rooms—designed for ultra-clean air quality.
• Camfil Molecular Filtration Solutions. These products are specialized for removing chemical contaminants and odors, making them excellent for laboratories and kitchens.

Facilities managers and building coordinators can rely on Camfil to meet stringent air quality standards while keeping functionality and budget in mind.

About Camfil Clean Air Solutions

For more than half a century, Camfil has been helping people breathe cleaner air. As a leading manufacturer of premium clean air solutions, we provide commercial and industrial systems for air filtration and air pollution control that improve worker and equipment productivity, minimize energy use, and benefit human health and the environment. We firmly believe that the best solutions for our customers are the best solutions for our planet, too. That’s why every step of the way – from design to delivery and across the product life cycle – we consider the impact of what we do on people and on the world around us. Through a fresh approach to problem-solving, innovative design, precise process control, and a strong customer focus we aim to conserve more, use less and find better ways – so we can all breathe easier.

The Camfil Group is headquartered in Stockholm, Sweden, and has 30​ manufacturing sites, six R&D centers, local sales offices in 35+ countries, and about 5,600 employees and growing. We proudly serve and support customers in a wide variety of industries and in 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/ 

 

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Camfil USA Air Filters 

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The post Best Air Filters for Universities and Colleges – How This Swedish Air Filtration Company is Helping American Colleges Boost Air Quality and Safety appeared first on Air Filters for Clean Air.

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Advancing Cleanroom Air Quality with Sustainable HVAC Filtration

Cleanrooms are critical environments designed to maintain low levels of particulates, microorganisms and other contaminants. They serve essential roles across industries such as pharmaceuticals, biotechnology, electronics manufacturing and healthcare. Whether you’re producing life-saving medications or microchips, even microscopic particles can cause catastrophic failures. 

Therefore, to achieve the required air purity standards, HVAC systems in cleanrooms must incorporate advanced air filtration solutions. Additionally, as sustainability becomes a central focus globally, the cleanroom industry is exploring innovative ways to balance high-performance filtration with environmental responsibility.

The Importance of HVAC Filtration in Cleanrooms

Cleanrooms operate under strict environmental controls to ensure product quality, regulatory compliance and personnel safety. Key components affecting air quality in a cleanroom include airflow management for contaminant control, pressure differentials to prevent contamination between the cleanroom and surrounding areas, and the air-change rate (ACR). 

Management of airflow uniformity is vital in cleaning pockets of air where particulates may have accumulated in greater amounts. Airflow uniformity refers to the consistent flow of filtered air in one direction, typically in a vertical flow. The ACR is the number of times in a 60-minute period that filtered air is recirculated within the cleanroom. Cleanroom ACR is dependent on factors such as size and usage, so it can range from 10 to 600 times in a 60-minute period.

Of course, air filters play a significant role in maintaining contaminant-free cleanrooms. High-efficiency particulate air (HEPA) filters can capture a minimum of 99.97% of particles as small as 0.3 microns, making them ideal for cleanroom air management. Ultra-low penetration air (ULPA) filters remove 99.999% of particles down to 0.12 microns, offering an additional layer of protection for the most critical environments. Air filtration experts often recommend a multi-stage filtration system that includes minimum efficiency reporting value with Appendix J (MERV A) 13A filters and HEPA filters to ensure a high level of contamination control.

International Cleanroom Standard

ISO 14644-1 is an international standard that classifies the cleanliness of air in cleanrooms and controlled environments based on the concentration of airborne particles. This standard defines the classification of cleanrooms by particle concentration, using units of particles per cubic meter. Classifications range from ISO Class 1 (the cleanest) to ISO Class 9 (the least clean). For example, natural air in a typical urban environment contains about 35 million particles that are .5 microns or larger in size, per cubic meter. Air of this quality would be allowed in an ISO class 9 environment. In an ISO class 1 environment, there must be 0 particles of .5 microns or larger and only 12 particles of .3 microns and smaller, per cubic meter.

This standard was first published in 1999 and revised in 2015. In 2001, the international ISO 14644-1 standard officially superseded the Federal Standard 209E, which was widely used in the U.S. 

ASHRAE Cleanroom Design Guidance 

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) publishes a design guide for cleanrooms. While absolute non-contamination is unattainable, cleanrooms can be engineered, managed and maintained to meet precise indoor air cleanliness standards tailored to specific process needs. 

The ASHRAE Design Guide for Cleanrooms provides an in-depth resource on cleanroom concepts, fundamentals, performance control strategies, testing methods and industrial applications. Designed for accessibility, it serves as a technical reference for cleanroom designers, builders, owners and operators.

Solutions for Sustainable Air Filtration

Balancing sustainability with cleanroom requirements poses unique challenges because, despite the importance of high-performance air filtration, it comes at a cost—energy consumption. Over time, as air filters collect particles, their resistance increases, placing additional strain on the HVAC system. 

Innovations in filter technology help to tackle these challenges. These advanced filters feature longer lifespans and are designed to reduce pressure drop, enabling efficient airflow and lowering energy costs while ensuring clean air quality.

In addition, cleanrooms rely on multi-stage HVAC systems to meet stringent air quality requirements. These systems use a tiered filtration approach, with pre-filters serving as the first line of defense. Pre-filters capture larger particulates before air reaches the more efficient secondary and final filters, such as HEPA and ULPA filters.

By intercepting large contaminants early, pre-filters reduce the workload on downstream filters, which are designed to capture ultra-fine particles. Protecting these high-efficiency filters from excessive exposure to larger particulates is critical, as clogging or damage can compromise their performance, shorten their lifespan, and lead to more frequent replacements—resulting in higher operational costs and increased downtime.

Pre-filtration is essential for extending the life of high-quality filters, minimizing maintenance expenses, and ensuring the smooth operation of HVAC systems. By safeguarding downstream filters, pre-filters also help maintain consistent airflow, enhance overall system performance, and reduce energy consumption.

Camfil’s Commitment to Cleanroom Excellence
Camfil’s cleanroom filtration solutions are designed to combine cutting-edge technology, durability and energy efficiency. In particular, Camfil’s Megalam ES and Absolute VG air filters stand out for their ability to ensure air quality that meets or exceeds industry requirements while optimizing operational costs.

Camfil’s Megalam ES HEPA panel filters offer a long lifespan while maintaining airflow and efficiency. These filters are engineered to reduce airflow resistance and pressure drop, which lowers energy consumption and enables facilities to maintain clean air without excessive operational costs. They are made with durable ePTFE media, are resistant to damage during shipping and installation, reducing the risk of compromised filters and avoiding costly downtime.

Camfil’s Absolute VG V-bank style HEPA filters feature advanced media designed to achieve high-efficiency particulate capture while minimizing airflow resistance. This design reduces the strain on HVAC systems, enabling facilities to meet stringent air quality standards for regulatory compliance while keeping energy consumption and costs under control.

With an extended service life, Absolute VG air filters further enhance energy efficiency by decreasing the need for frequent replacements. This not only reduces operational costs but also minimizes interruptions to production. Their ability to maintain superior filtration performance over time makes them an ideal choice for cleanroom environments where reliable HEPA filtration is essential.

The Future of Cleanroom Air Filtration

As industries grow increasingly reliant on cleanroom environments, the demand for reliable energy-efficient and reliable air filtration solutions will escalate. Camfil is leading the charge by continually refining its products to address emerging challenges. With a focus on sustainability, Camfil ensures that future offerings will not only enhance air quality but also align with environmental and energy-saving goals.

For more information about Camfil’s high-efficiency air filtration solutions, visit https://www.camfil.com/en-us/. 

 

¹ Providing a more effective cleanroom air filtration strategy, https://cleanair.camfil.us/2016/11/11/air-filtration-update-from-camfil-usa-federal-guidelines-for-cleanrooms-may-help-provide-a-more-effective-air-filtration-strategy/

² ISO 14644-1:2015, Cleanrooms and associated controlled environments, https://www.iso.org/obp/ui/#iso:std:iso:14644:-1:ed-2:v1:en

³ A Look Inside Life Science Cleanrooms,   https://cleanair.camfil.us/2016/09/12/a-look-inside-life-science-cleanrooms-by-air-filtration-leader-camfil-usa/

⁴ ASHRAE Design Guide for Cleanrooms,  https://www.ashrae.org/technical-resources/bookstore/ashrae-design-guide-for-cleanrooms

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