HIGH PERFORMANCE PORTABLE AIR PURIFIER - The True HEPA air purifier is perfect for large, indoor spaces, especially large bedrooms, living rooms, kitchens, and basements. Purify a 454 ft² room 3x per hour and a 1,361 ft² room 1x per hour. TOUCH SCREEN CONTROLS The LED touch screen is elegant and responsive; Easily control all 6 functions with a simple touch of the screen.