Product Detail 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 Single-speed, direct-drive blower/motor delivers up to 600 cfm Measures 34-3/4 by 34-3/4 by 9-3/4 inches; 2-year limited warranty . The "Honeywell F115C1005 Commercial Ceiling-Surface-Mounted Media Air Cleaner" is best product for you. We recommended Honeywell F115C1005 Commercial Ceiling-Surface-Mounted Media Air Cleaner