Restricted: This item is only approved for purchase by Business Accounts. Honeywell Enviracaire Elite™ UV100E ultraviolet air treatment system is engineered to kill airborne bacteria, surface mold, and other microorganisms in forced-air heating and cooling systems. Proprietary SmartLamp™ technology monitors the system to operate the UV lamps only when needed, extending bulb life and reducing power consumption.—And the system offers automatic brownout and high-temperature protection for the UV lamps. For safety, the unit is sealed to help protect against accidental exposure to high voltage and UV rays, it is designed to keep the lamp from lighting unless the base is correctly mounted, and a lamp lighted indicator provides a visual alert. A dual-purpose reset button turns the lamp On and resets the lamp run-time timer after bulb replacement. SnapLamp™ easy lamp maintenance and quick bulb replacement features a replacement lamp handle with detachable replacement bulb. The system can communicate with other home appliances through the Enviracom™ 3-wire bus.