Researchers have shown that ultraviolet light can be used to disinfect surfaces and kill the virus in ambient air in ways that could be used to reduce transmission in public spaces.
WASHINGTON — President Trump’s mention Thursday of treating COVID-19 with ultraviolet light was part of a rambling digression that included speculation about administering disinfectants to patients, prompting confusion and alarm from medical experts.
Yet if commercially available UV products were to mitigate some of the risk of contracting the coronavirus, that might help ease the transition out of a total lockdown. “This approach may help limit seasonal influenza epidemics, transmission of tuberculosis, as well as major pandemics,” the scientific researchers wrote in 2018.
“Most approaches focus on fighting the virus once it has gotten into the body. Far-UVC is one of the very few approaches that has the potential to prevent the spread of viruses before they enter the body,” Brenner said. One company, Healthe, is already selling a few different UV light products, including far-UV lights meant to be used in public spaces. One is a downlight that can be installed in the ceiling of an average room. There is also a portal, similar to a metal detector, that claims it “inactivates over 90% of contaminants” if a person stands — arms up — inside the portal for 10 to 12 seconds.
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