These commercial grade ozone generators safely eliminate smoke, food, mildew and garbage odors and reduce air born particles such as dust and mold spores. Great for hotel suites, large meeting rooms, restaurants, apartments, fire and floor restoration and more. Designed to protect electrical components from environment for longer life. Aluminum housing with gray powder coat finish. Ideal for areas up to 40,000 cu. ft. Includes sporax treated filters that eliminate wide range of airborne bacteria. Can be run continuously and controlled with a countdown timer to run unit for 1/4, 1/2, 2 or 4 hours overnight when facility is unoccupied. 120V. 5 Year Limited Warranty.