Helps eliminate indoor air pollution throughout your home via your air duct system. The Ultraviolet germicidal lamp KILLS and eliminates: dust mites, mold spores, pollen, viruses, airborne bacteria, fungi, off-gasses ... The EPA reports the air inside your home may be 2 to 5 times more polluted than the outside air. 'Indoor air quality problems carry a high degree of human health risk. This self-contained system cleans the air in your home or small business just like nature does. Both UV and Ozone are proven air cleaners that work even better together.