Offers superior cleaning power with permanent filtration. Permanent IFD filter is easy to clean and never needs replacement. Cleans up to 12 times better than ionic air purifiers. Features filter cleaning reminder and auto shut-off. Takes up little space, making it great for any room. Air Cleaner Machine Type: IFD; CADR: 80; Maximum Room Size (Square Footage): 124 sq. ft.; Maximum Room Size: 10 ft. x 12 ft.