Ozone safely alters the molecular structure of offensive micro-organisms to eliminate odor. The Uvonair CD-1000 ozone generator will treat all odors being exhausted by a 10in (25cm) ventilation system under most circumstances. The CD-1000-1 is intended for a room size of 20,000 cu ft (566 m?). Installs into other size ducts with adapters. Set the adjustable output by monitoring the exhaust air for odors. Warning: For commercial use only in unoccupied areas.