Holmes HAP8756 HEPA Air Purifier Like New HEPA Filters In great working condition. Will test it for you and demonstrate thoroughly before you pay. 99.97% Efficiency true HEPA filter traps all allergens and dust down to 0.3 micron. New HEPA filter technology contributes to reduction of noise level. No Escape Vacuum Seal HEPA filter technology eliminates polluted air bypass. Modular HEPA and Carbon filters are interchangable with other Holmes air purifiers. Employs Modular HEPA and Carbon Filters. Holmes HAP8756 HEPA Air Purifier Requires: - 3 HEPA Filters HAPF600 - 3 Carbon Filters HAPF60 FILTERS LIFETIME: (under normal residential conditions) HEPA Filter - 1 - 2 Years, Carbon Filter - 3 - 4 months. Four speed certified GE electric motor ensures Safe and Extra quiet operation. Patented fan blade design and air dynamic profile reduce level of noise by 30 %. Level of Noise per Speed: Sleep - Whisper quiet (below 30 dB) Low - Very quiet (below 39 dB) Medium - Quiet (below 48 dB) High - Fairly quiet (below 57 dB). AHAM certified CADR for Dust - 260, Pollen - 250, Tobacco Smoke - 270 CFM. Maximum cleaning area - 1254 sq. ft. @ 2 air changes per hour. Recommended cleaning area - 418 sq. ft. @ 6 air changes per hour. Power consumption: Sleep/Low/Medium/High - 40/80/120/150 Watts. Convenient electronic touch of a button 4 speed comfort control fan. Microban antibacterial protection inhibits growth of odor causing bacteria and mold. Electronic filter monitor for both HEPA and Carbon filters reminds when it's time to replace filters. 16-Hour programmable off timer. See-through Filter window allows for a quick filter check without opening the front cover. Separate LED Indicators for HEPA and carbon filters are easy to read. Child safe air purifier - motor doesn't run with open front cover. 16-Hour programmable off timer. Ultra-Slim space saving design perfect for placement against the wall. Comfort grip handle on back panel allows for simple movement. Color: Pearl-White with Chrome and Silver Accents. Width / Depth / Height: - 21.4" x 10.4" x 22.4" Weight - 22 lb.