Removes 99.99% of Aerosols Carrying Viruses*. Quickly and effectively removes many aerosols carrying harmful viruses and bacteria. Equipped with a filter layer protected by PuraWard® technology†. Disposable PK Modules containing Purafil’s patented§ molecular filtration media. HEPA filtration for harmful particulate matter. LCD display with touch controls and replacement alerts. Built-in sensors provide real-time air quality data. Also removes toxic and damaging gaseous pollutants.