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Experts agree: Portable HEPA Filtration Units Can Help Protect Against COVID-19

Here’s why both the CDC and ASHRAE recommend portable HEPA filtration units like Criti-Clean Ultra.

Leading HVAC industry and health care organizations like ASHRAE and the CDC have both recommended portable HEPA filtration units like our Criti-Clean Ultra fan filter units (FFUs) to help protect against the spread of COVID-19. And for good reason: they’re incredibly effective in producing cleaner and safer air in almost any environment.

Here’s part of the CDC’s recommendations:
“Consider portable high-efficiency particulate air (HEPA) fan/filtration systems to help enhance air cleaning (especially in higher risk areas such as a nurse’s office or areas frequently inhabited by persons with higher likelihood of COVID-19 and/or increased risk of getting COVID-19).”

ASHRAE also includes in-room or portable air cleaners in their filtration and disinfection guidelines:
“Air is pulled into the device, and cleaned air is returned to the room. Flexible ductwork can be attached to some devices to allow strategic positioning of intake and/or discharge locations, including discharge outside the room to create pressure differences and/or create clean to less-clean directional airflow.”

Both organizations also mention the additional effectiveness that Ultraviolet-C Radiation (UV-C) and Needlepoint Bipolar Ionization units can provide. Both of these types of virus-killing modules are also available options on our portable Criti-Clean Ultra FFUs.

The UV-C Radiation module sterilizes particulates in the air stream and also disinfects the HEPA filter. When microorganisms are exposed to UV-C, the light’s radiation penetrates their cell walls and disrupts the structure of their DNA to neutralize them.

The Needlepoint Bipolar Ionization module produces a stream of negative and positive ions, which attach themselves to microorganisms and render them inactive by depriving them of hydrogen. The resulting larger clusters of particles are more easily trapped in the HEPA filter.

Our portable Criti-Clean Ultra FFUs are available in both air-supply models, which provide filtered air into a room, and reverse-flow units that create a negative pressure environment that removes contaminants from an area.