While ultraviolet light will kill germs, even coronavirus, UV light researchers say the small hand-held tools being sold to disinfect groceries and clothing are unreliable and dangerous if mishandled.
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UVC wands kill viruses. Experts warn they're also a 'major safety issue' - CNET
Mythbusters
Can UV Light Kill Viruses?
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Have a UV disinfecting device? Most don't live up to claims and can be harmful
These UV Devices Could Keep Indoor Air Free of Viruses
Mythbusters
Can Ultraviolet Light Kill Germs? - The Skin Cancer Foundation
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