Panel Filter Costs in Commercial HVAC Premium vs. Budget Filters

In the world of commercial buildings and facilities management, ensuring optimal indoor air quality (IAQ) is not just a matter of comfort—it’s a crucial health and efficiency concern. Air filters are an essential part of maintaining a healthy indoor environment in public and commercial buildings; in addition to protecting the lungs of building occupants from dangerous air pollutants, the right air filters help support the health and efficiency of commercial HVAC systems. They are the first line of defense against pollutants and particulates that compromise indoor air quality. For facilities that prioritize public air quality, such as hospitals, schools, and office buildings, choosing the right air filter can have profound implications for occupant health and system performance.

With building managers continuously seeking ways to improve air quality in commercial buildings, the choice between premium panel filters and cheaper budget panel filters becomes highly significant. This guide aims to shed light on this choice, emphasizing the importance of selecting the right filters for your HVAC systems.

Premium Panel Filters vs. Cheap Panel Filters:  A Comparative Analysis

Definition and Purpose of Panel Filters

Panel filters are designed to remove larger particles from the air, such as visible dust and pollen.  They serve not only to protect the HVAC system’s components but also to improve the performance and extend the service life of any higher efficiency filters downstream in multistage HVAC systems. The occupants, employees, and visitors who walk through the doors of a commercial building deserve cleaner air to breathe and the proper use of panel filters will improve the quality of the air circulating within that building. 

Filter Media Quality

Premium panel filters are constructed with higher-quality materials designed for durability and efficiency. They often feature advanced filtration media that can capture a wider range of particulates without restricting airflow. In contrast, cheap panel filters typically use lower-grade materials that may not filter as effectively, potentially allowing more pollutants to pass through and recirculate within the building.

Construction Differences

The differences in design and construction between premium and cheap air filters are significant and impact their overall performance and durability. Premium air filters often incorporate robust frames that can withstand continuous turbulent airflow without succumbing to wear and tear. These frames ensure that the filter media remains intact and effective over longer periods. In addition to the higher quality media mentioned above, the highest quality air filters feature refined media configurations designed to ensure the media’s entire surface area is available for filtration while minimizing filter depth so that HVAC systems with limited capacity for filter housing can still benefit from premium filtration. This allows for more efficient particle capture while maintaining optimal airflow through the HVAC system.

On the other hand, cheap air filters are typically designed with cost-saving rather than performance in mind. Their frames are often made from less durable materials, which can warp or degrade over time, potentially compromising the fit and efficiency of the filter and allowing dust and sometimes large chunks of debris to bypass the filter altogether. The media in the filters is designed with far less pleats over the same area and the pleats themselves lack the complexities of the higher-quality filters. This not only reduces their effective filtration area but can also restrict airflow when the filter becomes clogged, forcing HVAC systems to work harder. The result is a filter that may need to be replaced more frequently and could lead to higher energy costs and reduced indoor air quality.

Impact on Air Quality and HVAC System Efficiency

The choice of an air filter directly impacts indoor air quality and the efficiency of the HVAC system. Premium filters, with their superior construction, can improve IAQ by capturing more pollutants. They also maintain optimal airflow, reducing strain on the HVAC system. Cheap filters, while initially less expensive, may lead to higher energy consumption and reduced system efficiency over time due to poor airflow and frequent replacements.

The Cost Factor:  Short-Term Savings vs. Long-Term Benefits

Initial Purchase Cost vs. Total Cost of Ownership (TCO)

The initial purchase price of premium panel filters is higher than their cheaper counterparts, which is often an instant deciding factor for facilities managers who need to prioritize cost reduction and protect their company’s bottom line. However, the initial purchasing price is just one of a few essential factors that need to be incorporated into a filter purchasing decision for an accurate picture of the long-term cost of a filter.

Some air filters use an electrostatic charge that acts like a magnet for particles, improving their ability to capture particles of all sizes. This allows manufacturers to give the filter a higher MERV rating after testing it in the factory, but filters like this do not maintain their rated efficiency for very long and offer significantly less protection once the charge begins to dissipate. To adequately protect building occupants and sensitive equipment, including the HVAC system itself, cheaper filters that rely on an electrostatic charge to function will need to be replaced much more frequently.

Even without considering more difficult-to-quantify costs such as productivity losses and increased employee sick days due to poor indoor air quality, premium air filters end up saving money in the long term due to the following cost factors:

1. Filter replacements.  High-efficiency filters need to be replaced less frequently, saving on labor and filter costs over time. Cheap commercial panel filters may need to be replaced 3 to 4 times more frequently than their high-quality counterparts.
2. Replacement labor and disposal costs. The cost of replacing a filter is more than just the price of buying a replacement; it also includes the labor costs associated with changing out a dirty filter and disposing of it properly. With high-efficiency filters, these costs are significantly reduced due to longer replacement intervals.
3. Energy savings. High-efficiency air filters can contribute to energy savings by preventing dust and dirt buildup in the HVAC system, allowing it to run more efficiently. Dirty coils and clogged ducts can cause the system to work harder and use more energy, resulting in higher utility bills. By keeping the system clean, high-efficiency filters can help reduce energy consumption and save money.
4. Equipment lifespan. A properly maintained HVAC system with high-efficiency filters can last longer than one that is not regularly serviced or has cheap filters. By keeping dust and dirt out of the system, high-efficiency filters can help reduce coil cleanings and prevent damage to the equipment, leading to a longer lifespan and avoiding costly repairs or replacements.

Video Series: Camfil Air Quality Specialists Explain Total Cost of Ownership in Commercial Air Filtration

Energy Efficiency and HVAC System Longevity

By maintaining cleaner airflow, premium filters alleviate the workload on HVAC systems, potentially extending the operational life. In contrast, the use of cheap filters can lead to increased maintenance issues and premature system failure, resulting in unexpected repair or replacement costs as well as the profit losses associated with building downtime. This not only increases the total cost of ownership but also disrupts building operations and causes discomfort for occupants.

Best Practices for Choosing and Maintaining Panel Filters

Considerations for Selecting the Right Air Filter

When choosing panel filters for commercial buildings, consider factors such as filter efficiency ratings (e.g., MERV ratings), the specific needs of the facility, and the type of pollutants typically encountered. Opting for a filter that balances efficiency with airflow is crucial for optimal system performance.

Importance of Regular Replacement and Maintenance

Regularly replacing and maintaining air filters is vital for sustaining IAQ and HVAC efficiency. Establishing a routine maintenance schedule based on the manufacturer’s recommendations and the building’s specific needs can prevent many common issues associated with poor air quality.

Learn more: Air Filter Procurement Guide – How to Properly Procure Air Filters

Prioritizing Air Quality in Commercial Buildings

For building managers and facilities management professionals, prioritizing indoor air quality is essential. By choosing premium panel filters and adhering to best practices for maintenance, you can ensure a healthier, more efficient environment for all occupants. Remember, the air quality in your commercial building is too important to compromise—make the choice that benefits everyone in the long run.

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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Determining Specific Indoor Air Quality Goals in Hospitals and Healthcare Facilities for Optimum Patient Health Outcomes

Ensuring the health and safety of patients, visitors, and healthcare workers in hospitals and healthcare facilities is of paramount importance, making indoor air quality (IAQ) a critical focus area.

In this article, air quality specialists from Camfil, a global air filtration research, engineering, and manufacturing company that provides state-of-the-art medical-grade air filters to healthcare providers across the globe, explore how maintaining optimal IAQ levels contributes to minimizing infection risks, preventing healthcare-associated infections, and promoting a safe environment conducive to healing for all. The article also aims to introduce healthcare administrators and facility managers to the significance of IAQ, the challenges associated with managing air quality in healthcare settings, and effective strategies for achieving and maintaining IAQ goals that align with health and safety standards.

Air Quality in Hospitals: Why Does it Matter? 

Healthcare providers understand the importance of breathing clean air.  The air quality in hospitals and healthcare facilities significantly impacts patient health outcomes. Therefore, maintaining good indoor air quality (IAQ) is a crucial factor for any healthcare facility. It not only ensures the safety and well-being of patients but also contributes to the overall experience of their stay.

The Impact of Poor Indoor Air Quality on Patients

Poor IAQ in hospitals can have detrimental effects on both patients and healthcare workers. Patients with respiratory illnesses, such as asthma or chronic obstructive pulmonary disease (COPD), are particularly vulnerable to the harmful effects of indoor air pollution, as are children, elderly patients, and immunocompromised patients. Exposure to poor IAQ can lead to exacerbation of symptoms, prolonged hospital stays, and increased risk of infections.

Poor IAQ can also affect the recovery process of patients. Studies have shown that exposure to air pollutants, such as particulate matter and volatile organic compounds (VOCs), can delay wound healing and increase the risk of post-operative complications.

Healthcare workers are also at risk of health issues due to poor IAQ in hospitals. They may experience respiratory problems, headaches, fatigue, and other symptoms related to exposure to indoor air pollutants. This can lead to decreased productivity and increased sick leave, affecting the overall functioning of the facility, as well as increasing the likelihood of inattentiveness and preventable mistakes. In most workplaces, these negative effects of poor indoor air quality on worker productivity and cognitive function mostly affect the company’s bottom line, but in hospitals and other healthcare settings, it could delay a patient’s recovery. 

Another important air quality consideration is the presence of airborne pathogens. Hospitals are high-risk environments for the transmission of infectious diseases, and poor IAQ can increase this risk even further. Pathogens such as bacteria, viruses, and fungi can spread through ventilation systems, posing a threat to patients with weakened immune systems. This can result in hospital-acquired infections, which not only prolong hospital stays but also increase healthcare costs and may put healthcare providers at risk for malpractice lawsuits.

To address these issues, it is crucial for hospitals to prioritize IAQ management. This includes regular maintenance of HVAC systems, proper ventilation design, and the use of air purifying technologies such as high-quality general ventilation filters and HEPA filters for critical areas. Implementing strict cleaning protocols and using non-toxic cleaning products can also significantly improve indoor air quality in healthcare settings.

Pollutants Affecting Indoor Air Quality (IAQ) in Hospitals

Pollutants that compromise indoor air quality (IAQ) in hospitals include a variety of sources, both external and internal. External sources such as vehicle emissions (such as idling ambulances and exhaust from helicopters on helipads) and industrial pollution can infiltrate hospital environments, introducing particulate matter and hazardous chemicals. Internally, medical equipment, cleaning agents, and building materials can emit volatile organic compounds (VOCs), while medical procedures generate bioaerosols, including bacteria, viruses, and fungal spores. Managing these pollutants requires a multi-faceted approach, encompassing regular air quality assessments, the adoption of green cleaning practices, and ensuring that construction or renovation projects within the hospital use materials that emit low levels of VOCs. Addressing the IAQ challenges in hospitals not only protects the health of patients but also benefits healthcare workers and visitors, creating a safer and more pleasant environment for everyone.

Air pollutants can broadly be divided into two categories: particulate pollutants and molecular (or gaseous) pollutants. Each requires different types of air filters to effectively be addressed.

Learn more: How Air Filters Improve Indoor Air Quality in Hospitals and Clinics 

The Importance of Identifying Specific IAQ Goals for Hospitals

To ensure optimum patient health outcomes, it is essential for hospitals and healthcare facilities to set specific IAQ goals. These goals should be tailored to meet the unique needs of each facility and its patients.

These goals provide a tangible framework for identifying, evaluating, and addressing air quality issues effectively. By establishing clear benchmarks, facilities can prioritize actions and allocate resources more efficiently, ensuring that indoor air quality meets or exceeds recognized health and safety standards. Furthermore, specific air quality goals help in the implementation of proactive measures rather than reactive responses, leading to a sustained improvement in the healthcare setting’s environmental health. This is not just about compliance with regulations; it’s about taking a comprehensive approach to prevent healthcare-associated infections, enhancing patient care, and promoting a healthier workplace for healthcare professionals.

Some factors that may influence IAQ goals for hospitals include geographical location (including proximity to large roads and industrial processing facilities), building design and construction materials, type of hospital (e.g., acute care, long-term care), types of patients being treated (e.g., immunocompromised, respiratory conditions), and frequency of use or occupancy.

For example, a hospital located in an area with high levels of outdoor air pollution may prioritize reducing the infiltration of outdoor pollutants and implementing effective molecular filtration systems for air entering the building. In contrast, a hospital with a high number of immunocompromised patients may focus on strict control of ventilation and humidity levels  to prevent the growth and spread of harmful pathogens and use HEPA and ULPA filters to remove harmful pathogens from the air.

Additionally, IAQ goals should also consider potential sources of indoor air pollution in hospitals, such as cleaning products, medical equipment, building materials, and administrative processes such as printing and copying. Reducing the amount of air pollution generated inside the hospital is an often overlooked but still highly important piece of a holistic, effective plan for improving air quality.

How to Determine Air Quality Goals in a Hospital

1. Consult an air quality expert to determine specific air quality problems. Conducting comprehensive indoor air quality assessments and monitoring is essential in identifying potential health hazards, risks, and pollutants. The results of these evaluations can then be used to set achievable goals that align with recognized standards and guidelines. It is crucial to work with an air quality expert with experience working with air quality in hospitals to understand not just the scope of the issues, but the best solutions to address specific pollutants, as well as how to prioritize areas of concern.
2. Follow ASHRAE standards and recommendations for other professional organizations.  ASHRAE has published several standards specifically related to indoor air quality in healthcare facilities. These include Standard 170-2021, which sets minimum requirements for ventilation design; and Standard 62.1-2022, which establishes the minimum ventilation rates and other measures intended to provide acceptable indoor air quality. Additionally, other professional organizations such as the Centers for Disease Control and Prevention (CDC) and the Environmental Protection Agency (EPA) have their own recommendations that can be used as a reference when setting air quality goals in hospitals.
3. Consider patient population and specific health conditions. Different patient populations may have varying sensitivities to different pollutants, so it is important to consider this when setting air quality goals in hospitals. For example, patients with respiratory conditions may be more susceptible to pollutants such as particulate matter and carbon monoxide, while immunocompromised patients may be at higher risk for fungal or bacterial growth. Additionally, certain health conditions may also require specific air quality measures, such as installing specialized filtration systems for patients with allergies or implementing stricter cleaning protocols for patients with weakened immune systems, as well as creating negatively pressurized isolation rooms to prevent highly contagious pathogens from spreading to other patients through the building’s ventilation system.
4. Prioritize critical areas and concerns first. Not all indoor air quality issues require the same level of attention. By setting specific goals, hospitals and healthcare facilities can prioritize their efforts and resources toward addressing critical areas first. For example, operating rooms and intensive care units may require higher ventilation rates and stricter air quality standards compared to waiting rooms or administrative areas.

Implementing Air Quality Goals in Hospitals: # Tips for Better Hospital IAQ from Air Quality Specialists

Once specific air quality goals have been established, it is vital to develop a comprehensive plan for achieving them. This may involve implementing various strategies such as:

1. Continued air quality monitoring. Regularly monitoring air quality is essential for measuring progress toward goals and determining whether or not solutions have been effective. Air quality monitoring will also help identify new problem areas as they develop to keep air quality goals aligned with the reality of the facility. This can be done through the use of indoor air quality sensors, as well as visual inspections of ventilation systems and other potential sources of pollutants.
2. Utilizing medical-grade filtration systems. High-efficiency air filters can effectively remove harmful particles from the air, improving overall air quality. It is essential to choose the right filter type for the specific pollutants present in the facility: mechanical (HEPA, ULPA, and MERV-rated) filters for catching small particles like dust and pathogens, and activated carbon or other activated media filters for reducing molecular pollutants such as carbon dioxide and volatile organic chemicals (VOCs). 
3. Proper ventilation and circulation. A critical factor in maintaining good indoor air quality is proper ventilation and circulation. Air filters cannot be effective against air that is stagnant, because the process of removing pollutants from the air requires air to move through the filter. Hospitals should ensure that their HVAC systems are functioning correctly and regularly maintained to provide adequate airflow throughout the facility.
4. Implementing source control measures. In addition to maintaining proper ventilation rates, healthcare facilities should also focus on reducing the number of pollutants entering the building. This can be done, in part, through source control measures such as regular cleaning and maintenance of HVAC systems, using non-toxic cleaning products, and ensuring proper storage and handling of chemicals.
5. Regular cleaning and maintenance. Regularly cleaning and maintaining surfaces, carpets, and other areas can prevent the buildup of pollutants such as dust, mold, and bacteria. It is also essential to regularly clean and replace air filters in HVAC systems. The exact frequency of filter change will depend on the specific filter and the concentration of pollutants in the air. Learn more about determining the most effective filter change-out schedule here.
6. Educate staff and patients on air quality management. To ensure the success of hospital air quality goals, it is important to involve all stakeholders in the process, including hospital staff and patients. Staff should be trained on proper infection control measures, proper use of cleaning products, and the importance of maintaining a clean and well-ventilated environment. Patients should also be educated on ways they can contribute to maintaining good air quality, such as not smoking and reporting any concerns about air quality to hospital staff.

Medical-Grade Air Filters for Better Hospital IAQ

Ensuring optimal air quality in hospitals and healthcare facilities is paramount for safeguarding patient health, promoting faster recovery, and preventing the spread of airborne diseases. High-quality indoor air plays a crucial role in creating a safe environment for patients, particularly those with compromised immune systems or respiratory conditions. Poor air quality can exacerbate existing health issues, introduce new health risks, and increase the transmission rate of infections. By prioritizing advanced ventilation systems, regular monitoring of air pollutants, and adherence to stringent air quality standards, healthcare facilities can significantly reduce the risk of hospital-acquired infections and provide a healthier atmosphere for both patients and staff. This commitment to maintaining superior indoor air quality not only enhances patient outcomes but also underscores the facility’s dedication to providing high-quality care. 

Find the right hospital-grade air filters to address your facility’s specific concerns by consulting with a local Camfil air quality specialist.

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 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 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

F: Friend Camfil USA on Facebook

T: Follow Camfil USA on Twitter 

Y: Watch Camfil Videos on YouTube

L: Follow our LinkedIn Page

 

Sources:

https://pubmed.ncbi.nlm.nih.gov/28054921/

https://pubmed.ncbi.nlm.nih.gov/37987510/

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The Importance of Air Filtration in Commercial Buildings to Combat Mold Risks

Indoor air quality (IAQ) significantly influences the health of individuals who work in and visit commercial buildings. Good IAQ fosters a healthier setting for inhabitants, boosting their overall wellness and efficiency. Subpar IAQ is associated with symptoms such as headaches, tiredness, difficulty focusing, and irritation of the eyes, nose, throat, and lungs. Therefore, it’s crucial to uphold safe IAQ for the wellbeing and productivity of those within the building.

Mold is a significant threat to IAQ in commercial buildings. There are many varieties of mold species capable of producing allergens or toxins that harm health. Preventing mold growth and addressing existing issues is essential due to potential health risks. 

Effective mold control requires diligence and proper maintenance of building and HVAC systems. High-quality air filtration systems play a crucial role in safeguarding the health of occupants and ensuring regulatory compliance.

The Problem:  Mold in Commercial Buildings

A combination of factors contributes to mold growth in buildings, primarily moisture problems like water leaks, high humidity, or condensation.  Inadequate ventilation exacerbates these issues by raising humidity levels, creating an ideal breeding ground for mold. Molds feed on organic materials such as wood, paper, carpet, and foods, further promoting growth under conducive conditions. Factors like temperature and light also play roles, with molds favoring dark, warm, and moist environments. 

In the United States, over 1,000 mold species have been identified, while globally, the count exceeds 100,000. Approximately 45 million U.S. homes and buildings lack proper ventilation, heating, or insulation, making them more susceptible to mold growth. Mold-related infections incur a significant economic toll, costing the U.S. economy around $5.6 billion annually. 

Allergic reactions to mold can occur immediately or over time. Symptoms include irritation to the eyes, skin, nose and throat in some individuals. While molds typically don’t lead to systemic infections, exceptions exist for those with compromised immunity, uncontrolled diabetes, or on immunosuppressive medications. Mold exposure can trigger asthma attacks in susceptible individuals. 

Mark Davidson, Manager of Marketing and Technical Materials at Camfil USA advises prioritizing prevention through proper air filtration, “Maintaining HVAC systems and overall building upkeep prevents health risks for occupants and potentially messy and costly mold remediation.” 

The Solution:  Air Filtration 

Air filters with high capture efficiency purify the air by removing most mold spores, as well as other allergens like pollen, dander and dust, preventing them from circulating in the air. By capturing mold spores, air filters help prevent the spread of mold.

Molds reproduce by releasing tiny spores, ranging in size from 2 µm to 100 µm in diameter, which can easily travel through the air over long distances. Effective air filtration is necessary to address mold contamination. However, it’s important to note that for filters to work efficiently in removing contaminants, air must pass through them. 

When dealing with elevated mold levels, increasing air changes within a space can impact the mold’s ability to reproduce. As more air passes through the filter, the overall removal efficiency improves. In cases where specific mold species pose health risks, using HVAC systems with appropriate filtration can minimize exposure, especially for molds requiring higher filtration efficiency due to their smaller particle size.

At times, the HVAC system itself can serve as a source of mold and other pollutants. For instance, moisture or dirt buildup in the ventilation air filters can contribute to indoor air quality issues. Stagnant water in drip pans or ducts may foster microbial growth within the system. Air filters play a crucial role in cleaning the air within HVAC and air purification systems by blocking pollutants from entering the indoor environment.

The Significance of Air Filter Efficiency

There are a variety of filters available, each with different efficiency ratings for capturing particles of various sizes. One widely used measure of filter effectiveness is the minimum efficiency reporting value (MERV) established by the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) in standard 52.2.2017. 

MERV evaluates a filter’s ability to trap particles ranging from 0.3 to 10 microns in diameter. Filters are classified on a scale from 1 to 16 based on their MERV ratings, with higher numbers indicating better filtration performance. The following table outlines the efficiency of different filters in capturing airborne particles: 

Differentiating MERV and MERV-A Ratings

A high MERV value in an air filter indicates better effectiveness in capturing small particles compared to filters with a lower MERV rating. However, air filters often struggle to maintain their designated MERV rating over time. To tackle this issue, ASHRAE introduced the MERV-A rating, as outlined in 52.2 Appendix J. This rating signifies that the filters have undergone supplementary testing, providing evidence that their MERV value remains consistent throughout their lifespan.

Certain air filters come equipped with an electrostatic charge that temporarily boosts their particle capture efficiency, resulting in an inflated MERV rating. However, as the filters accumulate airborne contaminants, the electrostatic charge diminishes, leading to a decline in the MERV value. For instance, the particle capture efficiency of a MERV 13 filter may quickly decrease to match that of a MERV 8 filter.

For optimal lifetime performance, facility operators should select air filters with a MERV-A rating. To effectively capture mold spores, select filters with a minimum of MERV 13/13A. It’s important to note that particulate air filters capture particles of varying sizes. For instance, a MERV 14/14A filter eliminates an average of 75 percent of particles larger than 0.3 microns, while a MERV 16/16A filter targets 95 percent removal. 

Keep in mind that limitations, such as the filter capability of the HVAC system, might prevent the use of higher MERV-rated filters such as MERV 14A filters.  In such situations, opt for the highest MERV-A-rated filter that your HVAC system can support. Most systems can accommodate 2-inch MERV 13 pleated filters. 

HEPA filters can capture up to 99.97 percent of particles greater than 0.3 µm. HEPA filters may not be compatible with all HVAC systems but are commonly used in stand-alone room air purification systems that target specific areas. Regardless, it’s important for HEPA filters to be individually tested and labeled. 

Molecular filters, commonly known as activated carbon filters, are vital for handling gases and vapors, and they also contribute to mold management. However, there’s a caveat:  these filters specifically target volatile organic compounds (VOCs) which are responsible for the moldy-musty odor. As a result, it’s possible to mask a mold issue by eliminating the odor, leading to the false assumption that the mold is under control, even when it might not be.  

Case Study:  Successful Elimination of Mold Odor 

Following torrential rainstorms, a southeastern U.S. city government administrative services building experienced flooding. Once the water receded, the building was plagued by mold issues. Despite undertaking mold abatement measures, a persistent and potent mold odor lingered, posing health risks to employees.

Seeking a solution, the city enlisted the help of Camfil’s Washington North Carolina operation. Camfil provided air cleaners equipped with molecular filtration specifically designed for odor control. The city received four CamCleaner 1000 Vertical freestanding, portable air cleaners, each housing 20 CamCarb canisters filled with activated carbon, ideal for removing gaseous contaminants.

To ensure optimal placement and operation, Camfil also provided staff assistance with technical aspects. The units were strategically positioned on the first floor of the multi-story offices, near HVAC return vents. Leveraging the central HVAC system’s fan, the CamCleaners efficiently circulated clean, filtered air throughout the facilities.

Within just 15 minutes of activating the CamCleaners, the air quality improved significantly. After only two weeks of continuous operation, the mold odor was completely eliminated and did not return. Impressed by their performance, the city decided to invest in a permanent CamCleaner unit, ensuring readiness for any future air quality or odor concerns.

Implementation and Maintenance to Manage Mold and IAQ 

Effectively managing indoor mold demands diligence and adherence to proper building and HVAC system maintenance practices. Central to controlling air quality is keeping contaminant levels within acceptable limits, whether they are detectable by occupants or aligned with health standards. Air filtration consistently plays a pivotal role in achieving this goal.

Facility professionals play an important role in maintaining IAQ. To achieve this, consider the following strategies:

• Identify Hazards: Be aware of potential airborne particulate and vapor hazards within indoor spaces. Recognize potential airborne particulate and vapor hazards present in indoor environments.
• Reduce Airborne Pollution:  Implement measures to reduce indoor air pollution, including regular maintenance of ventilation systems and the installation of advanced air filtration systems.
• Adhere to a Maintenance Plan:  Establish a comprehensive maintenance plan and schedule when installing new air filters. This ensures clean air for building occupants and optimal IAQ.
• Schedule Filter Replacement:  Regularly replace air filters according to the established schedule. This practice prevents unplanned expenses and keeps systems functioning effectively. 
• Monitor HVAC Equipment:  Consult with air filter professionals to measure pressure and HVAC system performance. This ensures proper airflow and maintains air quality.
  
• Understand Regulatory Requirements:  Train employees to recognize potential health and safety violations and educate them on how to report these issues. 

Air Filtration Solutions for Mold Control

The following Camfil air filtration solutions are ideal for capturing airborne mold spores:

Durafil® ES³ high-capacity, high-efficiency, V-bank style air filters. In situations where space is limited, these air filters are used as pre-filters to the main HEPA filter. They are available with MERV 11A, 13A, 14A, 16A and MERV 13 to MERV 16 ratings with an industry-leading 5-Star Energy Cost Index rating.

Durafil® Compac high-performance 6-inch-deep V-bank air filters that provide full-size performance to air handling units in restricted spaces. They are available with MERV 13A, 14A, 15A and MERV 13 to MERV 15 ratings.

Hi-Flo® ES pocket air filters are ideal for use as pre-filters to capture larger particles before they reach the main HEPA filter, helping to maintain the integrity and extend the lifespan of the more costly HEPA filters. They are available with MERV 11A. 13A, 14A, 15A and MERV 11, 13, 14, 15 ratings.

Opti-Pac® Durable compact air filters can provide high MERV-A particle capture efficiency in those units where only 2-inch or 4-inch air filters are possible.

AQ13® high-capacity pleated panel filter delivers high IAQ and extended service and is ideal for facilities where air handling equipment is limited to air filters that are 4 inches or less. These extended-life air filters can remain in service for up to six months.

Conclusion

In commercial buildings, air filtration plays a pivotal role in maintaining a healthy indoor environment by preventing mold growth. Effective air filters capture airborne mold spores, preventing them from circulating within the building. By reducing mold spore levels, filters inhibit mold growth on surfaces and in HVAC systems. This not only improves air quality but also eliminates musty odors, enhancing comfort and productivity for occupants.

Camfil offers advanced particle air filtration solutions that are up to the task of removing airborne mold spores and maintaining high IAQ. In addition, molecular filters effectively combat mold-related odors, contributing to a healthier indoor environment.

 

¹https://www.osha.gov/mold

²https://www.osha.gov/publications/shib101003

³https://www.osha.gov/publications/shib101003

⁴https://www.waterdamageadvisor.com/mold/statistics/

⁵https://www.osha.gov/mold

⁶https://www.epa.gov/mold/mold-course-chapter-1

⁷https://cleanair.camfil.us/2024/02/02/hepa-air-filters-serve-critical-function-in-containing-pathogens-born-in-airborne-infection-isolation-rooms/

⁸https://cleanair.camfil.us/2020/01/09/how-air-filters-capture-mold-spores-in-the-air/

⁹https://www.camfil.com/en-us/insights/air-cleaners-and-air-purifiers/government-camcleaner-for-mold-odor-usa

¹⁰https://cleanair.camfil.us/2023/10/07/commercial-and-public-building-air-filters-a-comprehensive-guide/

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Air Quality Specialists Jennifer Webb and Jon Holmes On Wildfires & Air Quality in Let’s Talk Clean Air Podcast

With various large wildfires across the country burning through the winter and into the early spring, 2024’s wildfire season is off to an early start and is sure to continue into the summer as higher temperatures and longer droughts in some regions of the United States and Canada create the ideal conditions for uncontained fires. As these blazes rage on, Camfil air quality specialists Jennifer Webb and Jon Holmes are urging the public to pay close attention to their surrounding air quality.

Webb and Holmes, both with years of experience in monitoring air quality and optimizing solutions, explain the effects of wildfires on air quality and the best ways to protect your health from the dangers of being exposed to wildfire smoke pollutants. 

2024 Wildfires in the United States

According to the National Interagency Coordination Center, there were 56,580 separate wildfires in the United States in 2023, burning a total of 2,693,910 of forest throughout the year. Although last year’s wildfires burned across less land than in previous years, significant declines in ambient air quality impacted people across the country during and after major wildfire events throughout most of the year, particularly in the summer. 

In 2024, there are currently 10 large uncontained wildfires burning 22,372 acres in five states (four fires in West Virginia, three in Virginia, and one each in Oklahoma, Georgia, and Kentucky). There have been 5,260 wildfires so far this year, which sits below the 10-year average of 9,629 wildfires by this point in the year. However, after the wildfires in Texas this February, including the largest wildfire in Texas history, 1,659,645 have been burned, compared to the year-to-date 10-year average of 474,563; total acres burned as of early April 2024 already total more than half of the acres burned in all of 2023. 

As of January 1, over 3,400 wildfires have been attributed to human activity, scorching approximately 1.6 million acres. In contrast, lightning sparked 10 wildfires, affecting around 388 acres. Missouri, Oklahoma, Texas, North Carolina, and California are home to the most human-caused wildfires. 

Why Is Wildfire Smoke a Health Concern? 

Inhaling wildfire smoke harms your body. If you live in the United States, it is likely that you have recently experienced the discomfort that wildfire smoke causes to some degree: stinging eyes, difficulty breathing, burning in your throat, difficulty concentrating, dizziness, and more. 

Though such discomfort is temporary and may not cause any lasting damage, exposure to wildfire smoke can be extremely detrimental to your health. 

Tiny PM2.5 particles can deeply penetrate the lungs and bloodstream. Even smaller ozone gas molecules can enter cells and major organs, leading to irreversible harm; the EPA refers to ozone as “sunburn for the lungs” for this reason. Pollutants from wildfire smoke can lead to severe complications, particularly with repeated short-term exposures or chronic exposure to wildfire pollutants. 

The Interagency Wildfire Air Quality Response Program and similar initiatives were established to evaluate, communicate, and mitigate health risks from wildfire smoke. The primary tool for assessing exposure risk is the Air Quality Index (AQI).

READ MORE: How to Improve Indoor Air Quality in Areas Affected by Wildfires 

Deep-Dive into the Impact of Wildfires on Air Quality & How to Stay Healthy During Wildfire Season

In episode 36 of the Let’s Talk Clean Air Podcast, air quality specialists Jon Holmes and Jennifer Webb provide insights into solutions for wildfire-related pollution, covering:

• How climate change impacts wildfires:  Longer droughts, rising temperatures, fire containment strategies, and how they’ve led to longer, more extreme wildfires in recent years.
• What makes wildfire smoke harmful:  The two main categories of pollutants found in wildfire smoke, the effects of each, and how to target them with air filters. 
• The EPA’s six criteria pollutants:  The prevalence of ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and nitrogen dioxide in wildfire smoke, when those pollutants become dangerous, and how they affect the Air Quality Index (AQI). 
• Personal restrictions and the Air Quality Index:  How wildfires change everyday life. 
• Actions to improve indoor air quality during wildfire season:  What air quality industry experts do to protect themselves and their families to stay safe when air quality is affected by wildfire smoke and how to keep yourself healthy indoors. 
• How air quality affects the workforce:  The economic impact of wildfires on the workforce for both employees and employers due to losses in productivity, and what can be done to address it.
• Air filter maintenance during wildfire season:  Filter replacement schedule changes and when to invest in a higher-capacity air filter. 
• Learning about AQI and IAQ:  Steps you can take to learn about air quality in your area and more steps to protect yourself from poor outdoor air quality.
• Becoming a Chief Airgonomics Officer: How to join the initiative to be a “Voice of Clean Air,” and become an advocate in your organization for a healthier and happier workplace.  Learn more here:  https://www.chiefairgonomicsofficer.com/en-us/ 

Listen to the full podcast here: Let’s Talk Clean Air | Protection Against Harmful Wildfire Smoke

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 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 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://www.nifc.gov/fire-information/statistics/wildfires

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