The Uvonair® 5000 attacks and neutralizes odors at the source. Ozone by ultraviolet light. Operates for less than a 100-watt light bulb. It eliminates odor, mold, bacteria, smoke, etc. Easy to use with no maintenance required. Uvonair 5000 is for areas up to 5,000 cubic feet. One year warranty.WARNING: FOR COMMERCIAL USE ONLY IN UNOCCUPIED AREAS.