The S8 Air Purifier uses a 3-stage air cleaning system, featuring a Pre-filter, a Washable AOC (Advanced Odor Control) Carbon Filter, 99.97 % efficient True HEPA filter. Features: 360 sq. ft. room size, VOC Smart Sensor, air quality visual indicator, light sensor, auto & sleep mode, remote control, AHAM CADR (Clean Air Delivery Rate) certified, Wattage - 75 W