Uvonair 5000 is for rooms up to 5000 cubic feet. Breathe easy while the Uvonair attacks and neutralizes odors at the source! Uvonair eliminates odors caused by tobacco smoke, plants, moulds and mildew. It even tackles the unpleasant odors from pets, cooking and damp basements. The Uvonair generates Ozone (O3) one of the most powerful oxidizers available. O3 doesn't just mask odors like mere air fresheners, it neutralizes odors at the source, then harmlessly converts to CO2 and oxygen.