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Below you’ll find answers to the questions we get asked the most about our air purifiers or air purification.

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Can AeraMax Pro capture SARS-Cov-2 (the virus that causes COVID-19)?

Fellowes AeraMax Pro air purifiers were demonstrated through independent laboratory testing to be effective in reducing aerosolized airborne concentration of Human Coronavirus 229E in a test chamber, reaching 99.99% airborne reduction within 1 hour of operation.

At the time of writing (April 2021), it is not yet possible or ethically responsible for labs to aerosolize live Sars-CoV-2 (the virus that causes COVID-19) for airborne testing in large (adequately sized) test chamber. We are aware of some claims from other manufacturers using extremely small test chambers (<15 cu ft.) but the test chamber used for our Coronavirus 229E testing was 20m3 (over 700 cu. Ft.) which is more representative of air movement in a real-world environment.

Single-strand RNA envelope viruses such as Coronavirus 229E are often used and accepted as a surrogate for SARS-CoV-2 to study antiviral effect of a specific device.

IIn addition, AeraMax Pro air purifiers:

  • Are also certified to be effective in reducing airborne concentrations of influenza A(H1N1) aerosol in a test chamber, reaching 99.9% airborne virus reduction within the first 35 minutes of operation
  • Certified to capture 99.97% of pollutants at 0.3 microns
  • Captures more than 97.8% of pollutants at 0.1-0.15 microns, via IBR Laboratories test data

How loud are they?

Both the AM3 and AM4 have 4 settings. The sound levels (dB) vary at each setting. For the AM3 the levels are 39, 46, 51 and 64. The AM4 sound levels (dB) are 49, 56, 61 and 74.

As a reference, many hand dryers sound pressure levels exceed 100 (dB), with averages around 80+ (dB). AeraMax Pro can be set to "quiet mode" and will run at or below the ambient sound level of the room in which it is installed.

How does the PlasmaTRUE bipolar ionizer help clean the air?

The PlasmaTrue bipolar ionizer produces clusters of positive and negative (bipolar) ions. These charged ions are dispersed into the air, and electrically charge airborne particles so that they attach to nearby surfaces and to one another, and settle faster. Charging and clustering airborne particles, enhances removal by filtration. Also, the ions react with oxygen and water vapor present in the air to create free radicals. The free radicals, in turn, can create chemical changes.

For example, they damage microorganisms (e.g., bacteria, viruses, and molds) and break down odors and VOCs.

SOURCE: "Indoor Air Purification Technologies that Allow Reduced Outdoor Air Intake Rates While Maintaining Acceptable Levels of Indoor Air Quality" Cecilia Arzbaecher and Patricia Hurtado, Global Energy Partners, LLC Ammi Amarnath , Electric Power Research Institute

Does the PlasmaTrueTM bipolar ionizer generate ozone?

Air purifiers, like many other products (computers, monitors, copiers, ceiling fans, and more) have a normal "ozone byproduct." An acceptable level for ozone byproduct has been set in the Code of Fedral Regulations (CFR) at a maximum 50 parts per billion (ppb). All air purifying devices must pass Underwriter Laboratories (UL) 867*.

In July 2013, Underwriter Laboratories conducted UL 867 testing procedures to determine the level of ozone byproduct generation by the PlasmaTRUE™ bipolar ionizer used in AeraMax Pro purifiers. The highest level of ozone generation observed during testing was 4.0 ppb (acceptable level for ozone is up to 50.0 ppb).

For reference, the Environmental Protection Agency developed the Air Quality Index for Ozone to give guidance to state and local air quality forecasters to assist in issuing Air Quality Index forecasts. The levels are:

  • 0 – 50 ppb: Good
  • 51 – 100 ppb:Moderate
  • 101 – 150 ppb: Unhealthy for Sensitive Groups
  • 151 – 200 ppb: Unhealthy
  • 201 – 300 ppb: Very unhealthy

Cities like Houston, TX and Los Angeles, CA can have indexes of 80 to 100 ppb at different times of the year.

The PlasmaTRUE™ feature can be turned off.

* This standard for acceptable levels of ozone byproduct is found in section 21:801.415 of the Code of Federal Regulations (CFR) and Underwriters Laboratory (UL) standard 867.

What features on AeraMax Pro are patent pending?

The EnviroSmart™ sensor technology:

  • For its ability to control fan speed and regulate the system’s air-flow based on conditions in the room.
  • Recognizes the type of AeraMax Pro filter that is installed in the unit and can adjust motor/fan speed accordingly to maintain consistent airflow rates.
  • For ability to place unit into stand-by mode to reduce energy and extend life of filters.

How do I override the EnviroSmart™ technology?

The below video outlines how to override the EnviroSmart™ Technology

How much energy do the systems consume?

Assuming the systems will run for 10 hours per day, 365 days a year (it is likely actual run-time will be less), the estimated annual power consumption for each unit is as follows:

  • AM3 average estimated annual power consumption is 120.82 kWh. Using a $0.10 cost per kWh, the estimated annual cost for power, per unit, is $12.08.
  • AM4 average estimated annual power consumption is 138.9 kWh. Using a $0.10 cost per kWh, the estimated annual cost for power, per unit, is $13.89.
  • Actual cost of power consumption will vary based on usage and actual cost per kWh.

Also, the units are “intelligent” in that they use sensors to self-regulate their settings based on the room’s occupancy and condition. This helps optimize air cleaning performance and energy efficiency.

How do I change my filters?

The below videos shows how to change filters for the AeraMax Pro 3 and AeraMax Pro 4. Still have questions? Contact us here.

AeraMax Pro AM3

AeraMax Pro AM4

How often do the filters need to be replaced?

The replacement filter indicators will signal when to replace the HEPA filter(s) and/or carbon filter(s). The replacement period will vary depending on the hours of use and air quality. However, under normal operating conditions, filter life is estimated to be the following:

  • 2” HEPA filter: 2 years
  • Carbon filter with pre-filter: 6 months
  • 2” carbon filter: 12 – 18 months
  • Hybrid filter: 12 months

Please note that the original HEPA filter shipped with the units should be replaced after 12 months.

Can I use another brand of filter, or private label filters in an AeraMax Pro?

No, the EnviroSmart™ sensor technology in an AeraMax Pro takes into consideration the type of filters loaded into the unit to optimize performance. Only certified AeraMax Pro filters can be read by the sensor technology. The unit will not run if its sensors do not detect the information located in certified AeraMax Pro filters.

What is the difference between adsorption and absorption?

Absorption is the process in which a fluid is dissolved by a liquid or a solid (absorbent). Adsorption is the process in which atoms, ions or molecules from a substance (gas, liquid or dissolved solid) adhere to a surface of the adsorbent. When using “absorb,” one can say that something moves inside an object. But in the case of “adsorb,” something forms a layer on the surface of an object.

Activated carbon filters adsorb odor and volatile organic compounds.

How should dirty filters be disposed of?

When replacing filters, place the used filter(s) directly into a plastic bag and seal tightly before placing in trash receptacle.

How is the product different from filters in the existing HVAC today?

AeraMax Pro is designed to complement HVAC systems by filtering air at the source of the contaminant. Also, most HVAC systems do not utilize HEPA filtration, which captures airborne contaminants as small as 0.3 microns including viruses, bacteria, and other airborne contaminants. HVAC systems may not have activated carbon filters to remove odor and volatile organic compounds, or bipolar ionizers to reduce airborne contaminants.

How often should I run my systems and at what setting?

Systems have intelligent sensors that automatically adjust unit settings to optimize performance and energy efficiency. You can simply select from two primary modes and the units will monitor themselves:

Normal Mode:

  • Unit runs at or below ambient sound level when room is occupied. When empty, rapid purification is initiated then lowers into energy-saving mode until sensors detect occupancy and/or odor.
  • This mode is recommended for systems installed in class rooms, work/common areas, conference rooms, offices, and other meeting areas where rapid purification is desired when room is not occupied.

Quiet Mode:

  • Unit runs at or below ambient sound level when room is occupied. When empty, rapid purification is initiated then lowers into energy-saving mode until sensors detect occupancy and/or odor.
  • This mode is recommended for systems installed in class rooms, work/common areas, conference rooms, offices, and other meeting areas where rapid purification is desired when room is not occupied.
  • Override settings are also available. Please consult your owner’s manual for further information.

What are the recommended installation positions to assure ADA compliance for protruding objects?

If installing an AeraMax Pro within a circulation path:

For rooms with at least 9’ ceilings:

  • High Installation: make sure the top of the unit is located 8” down from the ceiling.
  • In this position, airflow circulates efficiently, filters can be changed, and the unit is above 80” clear headroom required for ADA compliance.
  • Low Installation: make sure the bottom of the unit (leading edge) is at or below 27” from the finished floor.

For rooms with ceilings lower than 9’:

  • High Installation: units must be installed with at least an 8” clearance from the ceiling to assure airflow, and that filters can be changed. If in this position, the accessible route is reduced to less than 80” (nominal dimension) and a barrier to warn blind or visually impaired persons shall be provided.
  • High Installation, but not in a circulation path: units can be installed at heights below 80” from the ceiling.
  • Low Installation: make sure the bottom of the unit (leading edge) is at or below 27” from the finished floor.

For more information, visit ADA’s Compliance page

Where is the optimal placement of an AeraMax Pro?

Units should be installed as close to the source of the contaminant as possible, where contaminated air can be drawn directly into the filtering system. Also, by placing the unit up near the ceiling (always allow 8” space from ceiling and top of unit) the unit’s powerful exhaust can circulate purified air throughout the room. See computational fluid dynamic simulations for further insight.

Will a stand-alone room air conditioning unit interfere with the efficacy of the AeraMax Pro?

Any device that creates a strong air flow, such as an air conditioner, hand dryer, fan and HVAC system, can alter the projection of the purified air coming from the unit, as well as air being drawn into the system. Air flow can also be altered by cubicles, partitions, stalls, furnishings, half-walls, and other physical barriers and should all be considered when determining an installation location.

Why is AeraMax Pro better suited for public and shared spaces compared to other purifiers?

AeraMax Pro has patented sensor technology that automatically adjusts the unit based on conditions in the room to optimize purification and energy efficiency. No monitoring by staff is required.

Systems also have a vandal resistant design. Controls and filters cannot be accessed without unlocking the unit. The purifier filters, housing, motor, and balanced fan are all commercial-grade to hold up to the rigors of public and shared spaces.

Are there any clinical studies demonstrating the effectiveness of the solution?

No. However, Fellowes is pursuing multiple means of demonstrating the efficacy of AeraMax Pro. Laboratory and clinical studies are options being explored.

What features on AeraMax Pro are patent pending?

The EnviroSmart™ sensor technology:

  • For its ability to control fan speed and regulate the system’s air-flow based on conditions in the room.
  • Recognizes the type of AeraMax Pro filter that is installed in the unit and can adjust motor/fan speed accordingly to maintain consistent airflow rates.
  • For ability to place unit into stand-by mode to reduce energy and extend life of filters.

Our indoor air quality is checked several times a year, and the air quality is good. Why would I need an AeraMax Pro?

Even the cleanest facilities can have multiple areas that are sources of constant contamination. Anywhere that people gather, airborne contaminants can be generated—and, unfortunately, shared. These areas include restrooms, classrooms, waiting areas, ambulatory care, day care and nursery facilities, cafeterias/break-rooms, common rooms, and crowded office cubicle areas. Many of these areas, such as restrooms and cafeterias, can also be constant sources of odor.

Can I use AeraMax Pro air purifiers to manage radon gas levels?

While the activated carbon filter in the unit can adsorb numerous gases, air quality control systems are not designed for, or intended for use in, mitigation of radon in a facility. Contact a radon mitigation specialist. National Radon Proficiency Program (NRPP) maintains lists of certified radon contractors, radon measurement service providers, and analytical laboratories.

I have mold, can AeraMax Pro help?

Not with the source of the mold. Consult a mold remediator. For more information, contact The National Association of Mold Remediators and Inspectors. However, AeraMax Professional utilizes a high efficiency particulate air (HEPA) filter, which captures airborne germs and allergens including mold spores that are drawn into the system.

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