Aair Medical PRO Air PurifierSWISS AIR CLEANING TEC The aair Medical PROs Swiss patented, Zinc Pyrithione coating works by disrupting microorganisms cellular membranes and disabling their ability to replicate TRUE HEPA FILTRATION An F9 Pre Filter and H14 Main HEPA Filter work together to take air filtration from the standard 99. 7% of pollutants captured to 99. 995% PROTECT THE MOST VULNERABLE Safeguard those with compromised immune systems or sensitive lungs as the aair Medical