VidaShield UV24 Air Purification System is an in-ceiling system that improves indoor air quality by using patented ultraviolet light (UV-C) air cleaning technology to continuously clean and reduce the level of pathogens in a room’s air. The 2- x 4-foot products operate continuously to draw air into a sealed, self-contained, concealed chamber behind the ceiling panel where the air is treated with ultraviolet light air-cleaning technology. Ultra-quiet fans then recirculate the treated air back into the room.