An excellent choice for homes up to 1800 sq. ft. It features a 24 lb., 2.5 inch deep carbon bed and a medical grade HEPA. Flex hose and flange included. Optional UV lamp. This unit can be used to compliment any HVAC system. A powerful whole home air purifier, this unit treats all three of the factors that contribute to poor indoor air quality. It features 24 lbs. of activated carbon to adsorb chemicals and odors and a medical grade HEPA filter to remove 99.97% of all airborne particles down to 0.3 microns. Compatible with all HVAC units. 24 lb. MAC-B? Activated Carbon Filter Medical-Grade HEPA Filter Prodense Pre-Filter 2 Anti-Microbial Filters>br> Technical Characteristics Dimensions: 23.5" (height) x 15" (diameter) Shipping Weight: 60 lbs. 2-3 Boxes Filtration System: MAC-B Carbon, Medical-Grade HEPA, Prodense Pre-Filter Carbon Filter: 24 lbs MAC-B, 2.5" Depth Rated CFM: 400