A battery-powered motor fan pushes air into the BioVYZR, creating positive pressure inside the BioVYZR's hood. This positive pressure pushes out exhaled air from inside through two filtering air vents.
Inflowing air passes through a N95 or N99 filter to remove up to 95-99% of particulate matter from the inflowing air. This includes, but is not limited to, aerosol-transmitted pathogens, mist droplets, pollen, dust, soot, and pet dander.
Even though COVID-19 virions (virus particles) are only .1 microns in diameter, they're often transmitted through airborne respiratory droplets expelled from the mouth and nose. These infectious droplets can range from 10–100 µm (microns) and will not pass through N95 filters.