UV light—particularly the shortest wavelength, known as UVC—kills viruses by damaging their DNA or RNA, UV sterilizer light https://iuvclampt.com/collections/products/products/handheld-led-uv-sanitizer-wand-lamp
crippling their ability to make copies of themselves. Hospitals have been using UVC lamps and even UVC robots to disinfect the air in rooms. But just as with disinfectants, UVC light doesn’t discriminate in what it kills. This light can also damage human cells, potentially harming the cornea, causing sunburn, and raising the risk of skin cancer, says physicist David Brenner, who is director of the Center for Radiological Research at Columbia University. That’s why hospital staff turn on the lamps only when the rooms are empty.
Theoretically, it would be possible to snake a tube with a UV Disinfecting Wand https://iuvclampt.com/collections/products/products/portable-ultraviolet-sterilizer-lamp
into a person’s airway, but that would be a very bad idea. “That would be damaging to all the cells inside the body,” says Brenner. And in any case, the light wouldn’t reach all areas of the lungs. “The UV light can’t go around corners,” he says. “I don’t think you’d be killing all the viruses by any means.” Any remaining viruses would simply multiply, leaving the person still trying to fight off a Covid-19 infection—but now with potential cellular damage from the UV light.
Brenner has been studying far-UVC, a wavelength that can kill viruses but can’t penetrate beyond the top layer of human skin, which is made up of dead cells. Brenner says that kind of light could be used to safely kill germs in the air, not just in hospitals, but in airports, transit stations, and other places where people gather. Still, he points out, the idea would be to use far-UVC for environmental surface decontamination, not internally to treat patients.