Using a built-in UV lamp sterilizes air-borne antigens and pathogens. The AllerAir 6000 Exec UV Air Purifier offers the same coverage and larger carbon filter as other 6000 models but with its UV lamp, is meant to sterilize bacteria and viruses in the most sensitive environments. If your extra large space needs extra sterilization for bacteria and viruses, the AllerAir 6000 Exec UV Air Purifier is the perfect choice with added UV lamp protection. The AllerAir 6000 Exec UV Air Purifier has an 1800 square foot coverage area and acts to eliminate large and microscopic particles, gases, odors, anti-microbial, antigens and pathogens. The filter compound is anti-microbial, HEPA, MAC-B mass activated carbon filter and UV lamp and the 6000 Exec UV offers multi-stage filtration. With a CFM (cubic feet per minute) rate of 400, the AllerAir 6000 Exec UV Air Purifier is a floor model. The AllerAir 6000 Exec UV Air Purifier features 2 air changes per hour, a cleanable prefilter and an anti-microbial filter for disease carrying micro-bacteria. The MAC-B filter provides military-strength protection. The 6000 Exec UV's UV lamp sterilizes bacteria and viruses for extra protection. The AllerAir 6000 Exec UV Air Purifier comes in 5 attractive color options.