• Hello_there
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    fedilink
    11 month ago

    Some UV is blocked by glass. Either UVA or UVB. It doesn’t block both.

    • HubertManne
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      fedilink
      11 month ago

      yeah I encountered it when looking at infrared for another convo in the thread. its uvb for what we think of as glass. the clear stuff. which is what causes sunburns and the transition lenses to activate.