Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems eliminate pathogens in building air; and UV lamps kill bugs in drinking water.
Scientists Consider Indoor Ultraviolet Light to Zap Coronavirus in the Air - The New York Times
Coronavirus FAQs: Sunlight's Impact, Elevator Risks, Protocol For Plumbers : Goats and Soda : NPR
Ultraviolet radiation – News, Research and Analysis – The Conversation – page 1
Wavelength – News, Research and Analysis – The Conversation – page 1
COVID-19 research at CU Boulder, CU Boulder Today
Could a novel UV light device inactivate SARS-CoV-2 on surfaces?
Does all UV light kill viruses and bacteria?
Type of ultraviolet light most effective at killing coronavirus is also the safest to use around people, CU Boulder Today
Using UV light to kill coronavirus: The benefits and risks - CNET
UV light – News, Research and Analysis – The Conversation – page 1
Trump wants to treat COVID-19 with UV light. Here's why that wouldn't