The RxAir 400 patented chamber forces air to swirl closely around the three high-intensity germicidal UV-C bulbs for an extended period to maximize its inactivation rate. The RxAir 400 UV-C lights’ 254 nm wavelength is optimal for destroying a wide range of pathogens including coronaviruses, influenza, pneumonia, MRSA, tuberculosis, strep, measles, and more. Testing in EPA and FDA-certified laboratories has shown it destroys more than 99.9% of harmful bacteria and molds. Just plugin and turn on this low maintenance unit to lower your risk of exposure to airborne bacteria. Mighty fans draw in air filled with bacteria other pathogens at the bottom of the unit. Air passes through the patented chamber which houses three high-intensity UV-C lights that have been proven to inactivate bacteria and mold by damaging their genetic structure. Purified air exits the top of the unit.