Through a glass window we watch as the self-driving machine navigates a mock-hospital room, where it kills microbes with a zap of ultraviolet light ... agrees that UV disinfection robots can ...

LEDs are used which produce 405nm UV-A light. The manufacturer, Luminus, does not recommend that part for disinfection or sterilization. Luminus sells UV-C LEDs for that purpose, generating 275-285nm.

President Donald Trump has questioned whether injecting people with disinfectants and exposing patients' bodies to UV light could help treat the coronavirus. The Reality Check team has been ...