New Type of UV Light Kills Airborne Germs, Study Says

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A type of ultraviolet light called far-UVC, which is safe to shine on people, could dramatically reduce the transmission of airborne germs when used indoors, according to a new study.

, they found no signs of skin damage in hairless mice that were exposed to the light for 8 hours a day over 15 months.

The lamps killed more than 98% of the airborne microbes in 5 minutes. The research team found that even as more microbes were sprayed into the room, the far-UVC lamps keep the level of microbes low. The research team also noted the potential limits to using far-UVC in the real world, such as ensuring that lamps are installed properly and that the light has the right amount of radiation to be effective and safe for people. If a safe balance can be achieved, the technology could be a game-changer for reducing virus transmission, the researchers said.

 

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