The harmful radiation that we normally avoid could protect us from Covid.
Experts say the spread of coronavirus variants is forcing people to do so . Doubling up is an option, as is upgrading from a cloth mask to an N95 are evolving to improve masking through the integration of UV-C light.
UVC light is a radiation class with short wavelengths. It is naturally emitted by the sun, but artificial light sources such as LEDs can also be used to create it.