Cleans indoor air in public and shared spaces such as restrooms, childcare facilities, waiting rooms and other areas of high concentrations of people. True HEPA filtration captures 99.97% of airborne particulates including bacteria and viruses. Patented EnviroSmart sensor automatically adjusts to optimize performance in response to airborne contaminants and/or room occupancy. Activated carbon filter adsorbs wide range of chemical contaminants and odours. Optional PlasmaTrue Bipolar Ionizer renders bacteria, viruses, and mold inactive. Filter replacement indicator lights. For spaces ranging from 300 to 700 square feet. Professional installation suggested. 5 Speed Air Delivery up to 220 CFM. Vandal resistant reinforced housing. 5 Year Limited Warranty.