Bionaire Air Purifier BAP825 with Ion Technology WITH BRAND NEW CARBON AND HEPA FILTERS 50 Tested and working perfectly. We will test all features in front of you before you pay us. Covers 180 square feet or 12-by-15-foot room 99% HEPA filter removes airborne dust and pollen Activated carbon filter reduces household odors Independent ionizer assists particle removal Quiet operation Product Description 99% HEPA filtratraton with a Bionaire Tower Design Air Purifier for a 12' x 14' room Tall and thin, this air cleaner fits in the corner of a room, and has a modern design that complements most contemporary offices or homes. The purifier covers an area of 180 square feet (equivalent to a 12-by-15-foot room), and operates so quietly it’s not immediately noticeable to guests. For those prone to allergies, this air cleaner has a high-efficiency HEPA filter that removes about 99 percent of airborne particles from the air that are 2 microns or larger in size--such as dust, pollen, and smoke. An independent ionizer further helps remove particles, while a carbon filter reduces household odors. A built-in oscillator distributes air evenly through the room, and improves air circulation. An alert light lets you know when filters need to be changed. Compact controls on the top of the air purifier, and on the included remote control host three speed settings.