If you’ve been following our blog entries about viruses, micropdroplets, and Covid-19, or just reading the news, you’re coming to the conclusion that air filtration is getting to be very important.

It’s important to cut the “viral load” or amount of viruses that one is exposed to, and micro droplets that can contain Covid can remain aloft for up to 10 hours.

Masking and source capture (see our blog on dental aerosols) are good ideas, but there are many reasons why we still want to filter our air. Masks are not 100% effective (nothing is), and people make mistakes.

Just the facts: Why Filtration?

  • Masks are not 100% effective
  • People are not 100% effective at masking
  • Microdroplets stay in the air for up to 10 hours
  • Toilets can be a source of pathogens (including Covid 19)

Just the facts: What does my filtration system need to do ?

  • Capture microdroplets and viruses
  • Have airflow capable of 12 + air changes per hour (12 ACH)
  • Filtered air should flow from high to low
  • Have directed vents to avoid stagnant areas
  • Be quiet
  • Efficient
Clean air should be delivered high and returned low to the unit.

How to calculate required airflow

Airflow in cubic feet per minute (CFM) = # Air changes per hour (ACH) x Room Volume / 60

Example: Conference room 10’x20’x12′, with desired 12 ACH. CFM = 12 x (10x20x12) / 60 = 480 CFM


  • 2 Sizes: 500 CFM and 900 CFM
  • Low power use: 128 watts and 164 watts
  • Footprint of 18″ x 26″ x 72″ high (with casters)
  • Prefilter MERV11 with carbon impregnation
  • HEPA H13 (EU standard) 99.95% efficient, with individual test certificate.
  • HEPA is 24″x24″ x 12″ deep. This means it has a lot of holding capacity.
  • Electronically commutated motor (ECM), very efficient
  • Full range speed control with no motor hum (it’s ECM)
  • Customizable discharge: Front, Side, Top

Availability and Cost

  • We have a few of our initial batch available
  • We’re taking reservations for units to be ready in 6 weeks.
  • Check www.hvacquick.com for updated price and availability.