Ionic Zone.com is proud to announce the addition of the NQ Clarifier medical grade air purifier to their product line. The U.S. made NQ Clarifier is the air purifier of choice for hospitals, medical facilities, and clean rooms, and for good reason This advanced air purification machine has an unmatched air exchange rate, over 6 times an hour in a 440 sq. ft room, nearly double that of the nearest competitor. - April 29, 2006