SARS-CoV-2 is highly susceptible to irradiation with ultraviolet
light. High viral loads of SARS-CoV-2 can be inactivated in 9 minutes
by UVC irradiation. UVC irradiation represents a suitable disinfection
method for SARS-CoV-2. (American Journal of Infection Control, 4
August 2020)
https://www.sciencedirect.com/science/article/pii/S0196655320307562
This is good news. Every hotel room should have a UVC light treatment between guests. Might as well just put them in the ceiling.
Skip to the "Put to Use" section. Also has some good pictures of commercial UV disinfection set-ups.
Ultraviolet light can make indoor spaces safer during the pandemic – if it's used the right way
https://theconversation.com/ultraviolet-light-can-make-indoor-spaces-safer-during-the-pandemic-if-its-used-the-right-way-141512