When it comes to improving the indoor air quality in your home, Honeywell can help you see the light. When installed in your heating & cooling system, a Honeywell Ultraviolet (UV) Air Treatment System zaps live airborne particles and germs passing by the lamp, to make sure that they don’t survive in your duct system and move into your home’s air. The shortwave lights – similar to those used in hospitals, pharmacies and professional kitchens for nearly 50 years – are easy for contractors to install in your system, and the long-life lamps are simple to replace when needed.