Dynamic Air Quality Solutions  

Princeton,  NJ 
United States
  • Booth: 1138

Maximum airborne contaminant control and protection from ultrafine particles, odors, and gas-phase contaminants with lower energy costs and lower maintenance costs.

For indoor air and outdoor ventilation air, Dynamic V8 Air Cleaners remove ultrafine particles, odors and VOCs. The Dynamic V8 offers MERV15 performance with low static pressure resistance.  The Dynamic V8 uses 2/3 less energy than 85% passive filters with a high dust-holding capacity that translates into change-out intervals measured in YEARS instead of months. May also allow reducing outdoor air requirements using the IAQ Procedure in ASHRAE Standard 62.   

Dynamic Activated Carbon Matrix (ACM) systems featuring ceramic Versacomb technology remove gas phase contaminants of concern. Dynamic ACM Systems save space relative to carbon pellet systems and offer low pressure drop and no shedding. Media can be engineered on a job-by-job basis to meet specific requirements such as pressure drop, maximum face velocity and residence time.  Suitable for high airflow, high temperature, and high humidity applications. Also helps meet acoustic NC targets by reducing mechanical system sound levels.

 Press Releases

  • From Papyrus Magazine
    International Association of Museum Facility Administrators
    April, 2021

    Mitigating Airborne Infection Transmission in HVAC Systems

    There is a lot of information available that provides practical advice to help minimize the chance of spreading SARS-CoV-2 (the virus that causes the COVID-19 disease). Infection control is about reduction of risk, not elimination of possibility. A broad, systems approach, with purposeful redundancy, is required. HVAC systems represent just one part of the equation.

    According to Erin Bromage, Ph.D., Associate Professor of Biology at the University of Massachusetts Dartmouth, becoming infected requires an infectious dose of the virus. An infectious dose is a product of concentration and time. Some experts estimate that inhaling 1,000 infectious virus particles is enough for a virus to take hold. For a frame of reference, studies based on influenza suggest that normal breathing (at rest) releases about 20 viral particles/minute. Speaking increases respiratory droplet production to about 200/minute. So, a direct, face-to-face conversation could infect another person in about five minutes in the unlikely event that the recipient inhales all the exhaled particles from an infected person.

    The SARS-CoV-2 virus itself is relatively small, in the ~0.15-micron range. When it is coughed, sneezed, or exhaled, it becomes part of larger 0.6 to 10+ micron droplet nuclei. The larger of these droplets will fall to the ground quickly and that is why there is a focus on social distancing. However, smaller droplets when aerosolized, can remain suspended and entrained into HVAC systems. According to the American Society of Heating, Air Conditioning and Refrigerating Engineers (ASHRAE), transmission of SARS-CoV-2 through the air is sufficiently likely that heating, ventilating, and air-conditioning systems should be controlled to reduce airborne exposure to the virus.

    There are many different types of HVAC systems used in museums and galleries, so it is necessary to adapt guidelines to specific cases. General guidelines as it relates to HVAC systems include:

    1. Inspection and Maintenance: Assessing the condition of systems that have not been running and making any necessary repairs before starting up systems.

    1. Ventilation: Increasing outside air to dilute indoor contaminants is a first line of defense. For every cubic foot of fresh air that comes in, a cubic foot of potentially contaminated indoor air is exhausted.  It should be noted that this approach is likely to increase utility costs in instances where it is necessary to heat or cool incoming ventilation air.

    1. Air Filtration – Central HVAC: To the extent the coronavirus transmits from person to person by aerosols, improved air filtration can reduce the risk of transmission by reducing the concentration of infectious particles in the air. However, because improved air filtration in HVAC systems will not address short distance spread by large droplets, it cannot be considered as a standalone solution to airborne infection control.

    ASHRAE recommends MERV-13 rated filters if it does not adversely impact system operation. MERV, otherwise known as Minimum Efficiency Reporting Value, is a system used to evaluate the efficiency of an air filter based on how effective it is at catching particles of varying sizes. The higher the MERV rating, the higher the air filtration capabilities of a particular filter.

    Generally, the larger the HVAC system, the more feasible it will be to upgrade to MERV-13 air filtration. Some systems will not accommodate MERV-13 or better filters either because of space within the system (e.g. ductless, mini-split systems) or because of system design. Older systems that were installed without high-efficiency air filtration may lack sufficient fan horsepower to push air through denser filter media and/or long duct runs.

    An upgrade to high-efficiency filters may have other effects on the HVAC system:

    • Traditional high-efficiency filters have higher pressure drops than the standard filters they replace. Higher pressure drops means reduced airflow, which reduces heating/cooling capacity.
    • Increasing fan speed to overcome the increased pressure drop and maintain original airflow will increase motor load, so it is important to ensure that fan motors will not be overloaded.
    • Traditional high-efficiency filters may need to be changed more frequently which may be costly.

    Even if filters are not upgraded to a minimum of MERV-13, consider upgrading filters to the highest MERV filter that will not compromise HVAC system performance. Further, it is very important that care be taken to seal any gaps or leaks that might allow air to bypass filters.

    1. Portable Air Cleaners: Where MERV-13 filters cannot be used, including situations where there is no mechanical ventilation of a space, consider portable HEPA air cleaners for occupied spaces. HEPA stands for High Efficiency Particulate Air and HEPA filters range from MERV-17 to MERV-20. Portable HEPA air cleaners have a fan to pull air through the unit, a pre-filter, and a final (HEPA) filter.  A recent report from the Harvard School for Public Health recommends a minimum of 100 CFM (cubic feet of air per minute) per every 250 square feet of occupied space.  A room with 1000 square feet would require a minimum of 400 CFM.

    1. UVC and Air Cleaning: Air cleaners such as germicidal ultraviolet light systems may also be considered to supplement ventilation and air filtration. UVC dosage is based on dwell time, proximity, and light intensity. Supplying a lethal dose instantly as droplet nuclei are expelled is not possible and supplying the necessary dose in the fast-moving airstream of a duct is difficult and has many variables. While duct mounted UVC systems can be quite effective at significant inactivation and reducing contaminant levels, it does not mean that all viruses in a space will be inactivated. UVC systems mounted in ductwork or HVAC systems should be used in conjunction with effective air filtration to ensure that inactivated pathogens are removed by the air filters. UVC systems do not impose a pressure drop burden on the HVAC system. UVC lamps are usually replaced every year or every two years, depending on the type of lamps used. 

    1. Bipolar Ionization: Bipolar ionization breaks air down into positive and negative ions. The ions diffuse through the space and either react with or attach to particles. Reactions break down organic compounds to remove odors. Attaching to particles causes them to agglomerate into larger particles that fall to the floor or are more readily filtered. As with UVC systems, ionization systems should be used in conjunction with effective air filtration to ensure that inactivated pathogens are removed by the filters. The following information should be evaluated when considering bipolar ionization:

    • There are no industry standards or test protocols for bipolar ionization systems, so performance is not verified. There is some track record for reducing odors and destroying volatile organic compounds (VOCs), but solid data on killing viruses is scarce.
    • Technologies and equipment should be carefully evaluated to ensure proper safety to systems and occupants. Some ionization systems produce Ozone as a byproduct. Ozone is a disinfectant, but it is also an irritant. Ozone attacks rubber and could lead to the deterioration of belts and gaskets in HVAC systems.

    1. Humidity: Scientific evidence generally reflects the most unfavorable survival for microorganisms when relative humidity is between 40% and 60%.  This is also usually the most comfortable level for building occupants.

    Once again, infection control is about reduction of risk, not elimination of possibility. For additional information about mitigating infection transmission in HVAC systems, visit the COVID-19 resource pages at www.ashrae.org.

    Robert F. Goodfellow, CAFS is Vice President of Marketing with Dynamic Air Quality Solutions and an indoor air quality professional with over thirty years’ experience in the HVACR industry. Dynamic Air Quality Solutions has been designing and manufacturing air cleaning systems for over 35 years and is known for high-efficiency particulate and gas phase air filtration with low pressure drops. Its products have been used in hundreds of high-impact applications. Contact him at rgoodfellow@DynamicAQS.com or visit www.DynamicAQS.com to learn more.


  • Dynamic V8 Air Cleaning System
    The Dynamic V8 sets the standard for air cleaning - outperforming anything on the market in contaminant control, maintenance, and cost of ownership....

  • Designed to meet the rigorous requirements of Green buildings, data centers, hospitals, pharmaceutical and clean manufacturing, the Dynamic V8 Air Cleaning System couples maximum effectiveness with unparalleled energy and operational savings.

    The Dynamic V8, offering MERV 15 performance, utilizes both the principles of existing Dynamic products as well as several important technological advances to create a system that is a quantum leap over the current state of the art. Dynamic V8 Air Cleaning Systems offer property owners dramatic savings when using the Dynamic V8 in place of 4” MERV 13 filters in either flat or angled filter racks. Filter maintenance intervals Oare measured in YEARS instead of months. On average, it takes at least 32 changes of MERV 13 filters before the first change is needed for the Dynamic V8 - without pre-filters.

    Dynamic V8 Air Cleaners have been used succcessfully in museum applications around the world to maximize clean air and sustainablity.

  • Dynamic Activated Carbon Matrix Systems
    For precise control of gas phase contaminants without the energy penalty....

  • Dynamic Activated Carbon Matrix (ACM) systems are the perfect solution for controlling gas phase contaminants in museums, libraries, and galleries. Dynamic ACM technology eliminates unwanted odors, corrosive gases, and supplies purified air more efficiently.

    Dynamic ACM material uses advanced composites and extrusion technologies to increase carbon utilization. The revolutionary design utilizes an activated carbon/ceramic honeycomb matrix that features unrestrictive air channels to provide a pathway for air to flow with low resistance. The carbon and ceramic are tightly bound together, eliminating dust shedding and the need for downstream filters. Dynamic ACM systems require less space, operate with a very low pressure drop and require no post filters.