The LightStrike Germ - Zapping Robot uses ultraviolet ( UV ) light to kill microorganisms which cause infections . Once the robot is in a room, it scans it to make sure no one is present, then begins pulsing germicidal ultraviolet C light, which directly damages the DNA and structures of bacteria and viruses, leaving them unable to replicate and cause infections. Developed by Xenex , the $ 125,000 robot is used after a room has been manually cleaned to ensure the room is correctly cleaned . By emitting xenon , a gas which requires a full UV exposure , and a germicidal class C light , the robot directly damages the DNA of bacteria and viruses , which prevents them from replicating and causing infections .
The LightStrike Germ - Zapping Robot uses ultraviolet ( UV ) light to kill microorganisms which cause infections . Developed by Xenex , the $ 125,000 robot is used after a room has been manually cleaned to ensure the room is correctly cleaned . By emitting xenon , a gas which requires a full UV exposure , and a germicidal class C light , the robot directly damages the DNA of bacteria and viruses , which prevents them from replicating and causing infections .