Air Purifiers: FAQ’s

air purifier in classroom
Image Source: Fellowes

What is ACH?

Air Changes Per Hour (ACH) is a measure of air volume that can be added/removed from a space in a given hour. In general, an ACH of 5 means your air is being cleaned every 12 minutes. You should be aiming for 3-5 air changes per hour. Example: an ACH rating of 5x means that the full air volume is exchanged five times every hour.

What is a True HEPA Filter?

A True HEPA (High-Efficiency Particulate Absorption) air filter is a filter that removes up to 99.97% of airborne particles as small as 0.3 microns. The Fellowes® AeraMax™ True HEPA Filters are also treated with AeraSafe™ Antimicrobial Treatment that prevents microbes from growing on the filters. The True HEPA filter is the thicker white filter.

What is a Carbon Filter?

A Carbon Filter is a pre-filter that captures the bigger particles to avoid clogging the True HEPA Filter. The Carbon Filter is designed to help remove large airborne particulates and odors from the air. The Carbon Filter is the thinner black filter.

What is EnviroSmart?

EnviroSmart technology enables AeraMax Pro commercial-grade air purifiers to continuously monitor your environment and automatically adjust to clean the air, conserve energy and reduce operating costs

What is PureView?

PureView’s patented sensor technology and display makes the invisible visible with real time status updates as the air is cleaned. It provides maximum peace of mind that the air you and others breathe is clean.

Can AeraMax Pro capture SARS-Cov-2 (The virus that causes Covid-19?)

Yes! Our Fellowes AeraMax Pro AM3 & AM4 air purifiers demonstrated, through independent laboratory testing, to be effective in eliminating aerosolized concentration of SARS-CoV-2 by 99.9999% through a single air pass test of the purifier.

In addition, AeraMax Pro air purifiers reached 99.99% airborne reduction of a surrogate Human Coronavirus 229E in a 20m3 test chamber within 1 hour of operation in a separate test.

In 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

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