On Tue, Apr 21, 2020 at 3:32 PM Michael Foster <mf...@yahoo.com> wrote:
> Yes, 254 nm is an excellent virus killer. However, unlike 222 nm, long > term exposure to 254 nm can cause damage to the eyes and skin. As Jonathan > Berry points out 222 nm won't even penetrate the water film on your eyes. > Well, there's only about a million 254 nm UVGI systems out there and they are quite inexpensive. But, if you feel compelled to stare at the photon source, spring for these $10 safety glasses. They meet CSA Z94.3 standards. https://smile.amazon.com/gp/product/B000USRG90/ <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
