Airwise uses nature’s own method of air purification performed by ultraviolet light rays and a multi-metallic coating combining titanium, copper and zinc, which is the catalyst that generates and activates hydroxyl radicals (the most important cleansing agents in the earth’s atmosphere) and superoxide ions (negative ions functioning as pathogen “zappers” to rid your environment of harmful organisms). WisePointe™ technology is added to generate active negative ions at an accelerated rate to clean your air of particulate faster. Lamp Module replacement is required after approximately 9,000 hours (1 year) of use, less than 55¢ per day.