LARGE ROOM AIR PURIFIER - Honeywell HPA204 HEPA Air Purifier helps provide cleaner, fresher air. Recommended for large rooms (310 sq. feet), HEPA Filtration captures up to 99.97% of microscopic airborne allergens and particles.* HELPS REDUCE ALLERGENS - This HEPA air purifier has 3 air cleaning levels including Turbo Clean. It helps capture the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke.* EFFECTIVE AIR CLEANING AND CIRCULATION - The Honeywell HPA200 Air Purifier filters and circulates air in large 310 sq. ft. rooms up to 4.8 times an hour.** ALLERGEN PLUS SERIES - This Honeywell HEPA Air Purifier is part of our Allergen Plus series. This product earned the ENERGY STAR label by meeting strict energy efficient guidelines set by the U.S. EPA. COMPATIBLE DOES NOT MEAN COMPARABLE PERFORMANCE - For best performance, use only Genuine Honeywell air purifier filters.