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Is UV light harmful to humans?

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Is UV light harmful to humans?

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UV Light That Is Safe for Humans but Bad for Bacteria and Viruses. ... Scientists have known for decades that broad-spectrum UVC light, which has a wavelength of between 200 to 400 nanometers (nm), is highly effective at killing bacteria and viruses by destroying the molecular bonds that hold their DNA together.Feb 9, 2018

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