Really short wavelengths, like 205nm are actually safe because they don't penetrate the outer layer of dead skin cells, but they also produce ozone.
The WHO knows about UV. That's why they have been pushing SOLDIS, or solar disinfection of water in third world countries. Then they turn around and say we have to wear masks outside.
Because the virus is in stool, if you happen to be downwind from toilet vent stack you could get exposesd. That's how it spread on cruise ships when everyone stayed in their cabins.
The Chinese published a paper where people locked in their apartments in Wuhan still got sick, and they identified the plumbing.
Really short wavelengths, like 205nm are actually safe because they don't penetrate the outer layer of dead skin cells, but they also produce ozone.
The WHO knows about UV. That's why they have been pushing SOLDIS, or solar disinfection of water in third world countries. Then they turn around and say we have to wear masks outside.
There was a study from NY stating "66% of people who stayed inside caught vid19".
Because the virus is in stool, if you happen to be downwind from toilet vent stack you could get exposesd. That's how it spread on cruise ships when everyone stayed in their cabins.
The Chinese published a paper where people locked in their apartments in Wuhan still got sick, and they identified the plumbing.