Panasonic F-P15HU2 Air Purifier Electronic air purifier with 4 air-speed levels for rooms up to 12 by 18 feet Air-quality monitor with micro sensor; quiet operation; filter-change indicator HEPA filter removes 99.97 percent of airborne particles 0.3 microns or larger Deodorizing filter with activated charcoal removes unpleasant odors Measures 15-5/8 by 21-1/4 by 6 inches