Aiming to reduce the risk of COVID-19 infection and diminish coronavirus, UVC radiation has been widely promoted and applied in disinfection. But UVC radiation exposure could also lead to damage on skin and eye for human and animals. Finding a way to safely deploy UVC light has thus become a target for researchers all over the world. Far-UVC with a wavelength of 222 nm is considered a safe alternative in UVC disinfection as many researchers found that the light can effectively deactivate germs and viruses without causing harm for people. A new study led by researc...

Columbia University’s ultraviolet (UV) light technology has been licensed to USHIO Inc., a Tokyo-based developer, manufacturer, and marketer of light sources and instruments.