Kills up to 70 percent of certain airborne bacteria passing by the system .</br>Exclusive safety features. Sealed design prevents contact with voltage and UV rays.</br>Easy installation in forced-air heating and cooling systems.</br>Lightpipe indicator allows homeowner to see the bulb is lit</br>Easy Bulb replacement - simply twist and remove</br></br>Product Description</br></br>"HONEYWELL" UV AIR TREATMENTSYSTEMEasy installation in forcedair-heating and coolingsystemsKills up to 70% of certainairborne bacteria passing bythe systemExclusive safety featuresSealed design preventscontact with voltage and UVraysBoxedREASON ADDEDNew UV air treatment system reducescertain viruses and bacteria.</br><br/>http://www.amazon.com/gp/product/B000F0DWWI