HOLMES HAP9412BNUA HEPA Type Mini Tower, 110 sq ft Room Capacity, Black Portable, space-saving design of this purifier makes it easy to fit into any environment. Highly effective in cleaning the indoor air. Quiet and simple to operate. HEPA-Type filtration removes up to 99% of airborne particles as small as 2 microns from air passing through the filter. Enhanced Arm & Hammer filter helps eliminate common odors. Air Cleaner Machine Type: HEPA; CADR: 70; Maximum Room Size (Square Footage): 110 sq ft; Maximum Room Size: 10 ft x 11 ft.