Dr. Sunshine Airflow Activated, Whole House UVC PCO Air Purifier UVC light kills and deactivated airborne germs, viruses, bacteria, dust mites, and superbugs. Purifies and cleans air and neutralizes odors. Photo-catalytic oxidation: titanium dioxide interacts with UVC light to destroy volatile organic including harmful indoor pollutants such as formaldehyde, ammonia, benzene, ethylene glycol, vinyl chloride, mercury, etc. The airflow activated system saves energy and extends the life of the UVC lamp. Simple and easy installation. The lamp power indicator allows you to safely see if the lamp is working or needs to be replaced. Easy lamp maintenance and replacement. Only replace lamp with Dr. Sunshine 36-watt UVC replacement lamp. UVC lamp does not produce ozone.