The Neoair Enviro Plus Room Air Purifier covers 600 square feet. It utilizes a SuperHEPA filter that incorporates twice as much filter media than a regular HEPA filter. This makes the SuperHEPA filter more efficient against the finest particles and allergens. Asthma sufferers and people who are extra sensitive to dusts and pollens will benefit greatly from the use of this air purifier. Also utilized on the Neoair Enviro Plus Room Air Purifier is an advanced O.F.S. (Organic Fiber Sterilization) filter. This captures mold spores and bacteria, but also proactively kills them. Up to 96% of mold spore colonies are reduced in a room within 6 hours and an average of 97.7% of certain airborne bacteria are killed in a mid-size room after six hours of operation. The Enviro Plus Room Air Purifier has an optional dust precipitator that can be turned on-off using a remote control. Plasma flocks are produced to knock down dust from the air. A built-in air quality monitoring sensor detects the severity and concentration o