Commercial Ozone Generator 3500mg Industrial O3 Air Purifier Black Deodorizer Sterilizer COMMERCIAL GRADE: True 4000 mg/hr Ozone output delivers unmatched odor destroying results. NATURAL ODOR REMOVER: Ozone is nature's secret weapon for fighting odors. WORKS ON ALL ODORS: Smoke, paint, pet, musty basements... you name it. They are no match for Ozone. CAN BE USED ANYWHERE: Homes, apartments, cars, etc... treat spaces up to 4,000 SQ FT BEST WARRANTY: Our 5 year warranty is standard with each unit, making it a great investment.