Comment on Ultraviolet light can kill almost all the viruses in a room. Why isn’t it everywhere?

• Nindelofocho@lemmy.world ⁨10⁩ ⁨months⁩ ago

  UVC, the kind that kills pathogens harms the skin and eyes and creates ozone. The article talks about using “far UV” which is just lights posted a safe distance away from humans above them which makes it considerably less effective at killing pathogens at the human level and also now theres a whole area of space where you cant go without risking harm from UVC like being on a ladder or some other platform.

  UV also degrades lots of materials a lot faster

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  • Dadifer@lemmy.world ⁨10⁩ ⁨months⁩ ago

    Far UV refers to the wavelength, not distance from humans.

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    • Nindelofocho@lemmy.world ⁨10⁩ ⁨months⁩ ago

      You’re correct. I meant to say Upper Room UV, I edited it

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• tastysnacks@programming.dev ⁨10⁩ ⁨months⁩ ago

  You know, his mom had multiple holes you could use instead.

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  • Dadifer@lemmy.world ⁨10⁩ ⁨months⁩ ago

    Aaaaaayyyy, you got me

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• learningduck@programming.dev ⁨10⁩ ⁨months⁩ ago

  Yeah UV light alone is safe, but by the end of the article it mentioned that far-UV light also triggers a chemical reaction that creates ozone, which is dangerous. It needs a good ventilator system to make it safer.

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  • FiskFisk33@startrek.website ⁨10⁩ ⁨months⁩ ago

    UV-A is quite safe, UV-B are the harmful wavelengths that cause the harmful effects of sunlight, UV-C is much worse. The light that kills viruses, UV-C quickly damages your eyes quite severely, and also burns your skin and can cause skin cancer far, far faster than UV-B.

    en.wikipedia.org/wiki/Ultraviolet#Harmful effects

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  • JustZ@lemmy.world ⁨10⁩ ⁨months⁩ ago

    I’ve been using both a dedicated Ozone generator in unoccupied rooms and a UV sanitizing light built into the HVAC system. Seems to be improving allergies.

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• AI_toothbrush@lemmy.zip ⁨10⁩ ⁨months⁩ ago

  O3

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