Honeywell F114C1008 Commercial Ceiling-Surface-Mounted Media Air Cleaner Commercial ceiling-surface-mounted air-filtration system Filter removes 95-percent of airborne particles down to 0.3 micron in size Activated-carbon prefilter; CPZ module for removing smoke and odors Quiet operation; 2-speed direct-drive fan/blower; 325 cfm; easy maintenance Measures 37-1/2 by 20 by 10 inches; 2-year limited warranty