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 odors. Optional PlasmaTrue Bipolar Ionizer renders bacteria, viruses, and mold inactive. Filter replacement indicator lights . For spaces ranging from 300 to 700 square feet. 5 Speed Air Delivery up to 220 CFM. Built-in handle and stand allow for easy portability. Includes 120V plug for easy use & quick set up.Vandal resistant reinforced housing. 5 Year Limited Warranty.