I did asked before , but apparently providing a link to a science report of harmless for humans (both skin and eyes) far-UV light was not enough to make people understand the significance of the solution to the raging COVID-19. So this link (please read a bit of it): https://www.nature.com/articles/s41598-018-21058-w Says that the UV light of wavelength 222 nanometers (the photons bounces off the skin and the eyes) is absolutely harmless and do not make neither skin cancer or cataract. So this light is deadly for viruses and is not commercially available to anyone like ordinary humans (perhaps only some labs got it but sure cannot by on amazon or ebay or so). So if you wish to protect people you ideally need something to kill the virus in mid-air exactly as this lamp does. Cite: "By contrast, we have previously shown that far-UVC light (207–222 nm) efficiently inactivates bacteria without harm to exposed mammalian skin." - this line is at the beginning of the link above. So my idea is to help ordinary people that have some DIY experience to make a lamp and disinfect the clothes and themself like skin and face and face mask and so. So a guy good in chemistry of similar that ca help with his knowledge and experience to help the people and get rid of the virus. The research I did in the internet says that the UV has ability to kill virus in 10 seconds. So having a lamp emitting harmless 222nm UV light instead the cancer deadly 254nm UV germicidal lamps will be able to protect from the diseases. The question is how to make it.
so I suppose you can type a good way to do it and save the half of the western world population (the old people like your grandma and grandpa)?
(Nobody needs glass (or quartz) blowing of a lamp. Neither skills beyond the ordinary DIY - well it might be a need of experienced DIY-er.)