There's also underfunded research on far-UV light, which at the right wavelengths kills pathogens without apparently affecting humans. It might really be that s

There's also underfunded research on far-UV light, which at the right wavelengths kills pathogens without apparently affecting humans. It might really be that simple. https://www.smithsonianmag.com/innovation/could-uv-light-reduce-the-spread-of-covid-19-in-indoor-spaces-180980872/ https://www.smithsonianmag.com/innovation/could-uv-light-red... https://www.cuimc.columbia.edu/news/new-type-ultraviolet-light-makes-indoor-air-safe-outdoors https://www.cuimc.columbia.edu/news/new-type-ultraviolet-lig...