Designed for occupied spaces, the AR1 UVC installs seamlessly into standard grid ceiling without connecting to duct work UV-C chamber is hidden in ceiling plenum Proprietary and patent-pending ultra-high reflectivity chamber utilizes a shielded all metal chamber, designed to last for the life of the unit Up to 98.1% first pass kill rate with 24x7 ultraviolet protection against airborne bacteria, viruses, and mold Access to the Array Viewpoint cloud-based dashboard is included at no charge. See Viewpoint Terms and Conditions for details. All units connect through building-wide, secure LTE UV-C bulb has a lifespan of 9,000 hours (1 year) Designed for long term use & backed with a 3-year, limited warranty