M39: AIR SCRUBBER Model 5000V From American Safe Air® (IN STOCK Price: $2,495.00 + S&H: $89.00 For more information, please call toll-free: 1-888-299-9750 The Air Scrubber is designed to turn most any room into a positive pressure safe room in seconds. Ideal for Office, School, Daycare or Home. Three-Stage Filtration: Stage 1: Activated Carbon Pre-filter removes large particulates and odors. Stage 2: HEPA filter is 99.97% efficient @ 0.3 microns. Removes dust, pollen, bacteria, animal dander, attached viruses, cigarette smoke, radon daughters and more. Stage 3: V.O.C. filter removes hazardous chemicals that may off-gas from cleaners, paints, solvents, carpets, furniture and other items containing synthetic materials. The Pre-Filter door contains a washable aluminum screen that prevents large particulates from entering the cabinet. The Pre-Filter can be easily removed and steam cleaned as necessary. HEPA is a filtration standard created by the U.S. Atomic Energy Commission. HEPA filter media is proven to be 99.97% efficient @ 0.3 microns (a micron is 1/1,000,000 a meter or 1/25,000th of an inch). Due to their extremely high efficiency, HEPA filters have become widely used in medical, electronic and industrial applications. HEPA filters are composed of a various sized borosilicate fibers, which are pressed together to form a netlike structure with opening large enough for air to pass through but too small for most particulates.