New UV Light Makes Indoor Air as Safe as Outdoors

Scientists have known for decades that conventional germicidal UVC light can rapidly kill bacteria and viruses, but it can’t be used indoors as it’s a potential health hazard that can damage the skin and eyes. far-UVC light, however, is just as effective but since it has shorter wavelengths, it can’t penetrate living human skin cells or eye cells. But it can kill microbes, which are significantly smaller than human cells. That’s as much proof as I need. Now let’s make all lights far-UVC and move on with our lives.