Wouldn't UV light burn your lung tissue as much as kill the virus. You don't have a thick layer of skin for nothing...
Far UVC light could help in stores
https://www.genengnews.com/topics/translational-medicine/uv-light-that-is-safe-for-humans-but-bad-for-bacteria-and-viruses/
“Unfortunately, conventional germicidal UV light is also a human health hazard and can lead to skin cancer and cataracts, which prevents its use in public spaces,”
...
In this study, aerosolized H1N1 virus—a common strain of flu virus—was released into a test chamber and exposed to very low doses of 222-nm far-UVC light. A control group of aerosolized virus was not exposed to the UVC light. The far-UVC light efficiently inactivated the flu viruses, with about the same efficiency as conventional germicidal UV light.
At a price of less than $1000 per lamp—a cost that would surely decrease if the lamps were mass produced—far-UVC lights are relatively inexpensive. This could allow the tool to be utilized in far more places than UV lights are currently being employed, leading to potentially wide sweeping impacts toward diminishing the spread of many infectious diseases.
I wouldn't stick it down my throat though:
“Far-UVC light has a very limited range and cannot penetrate through the outer dead-cell layer of human skin or the tear layer in the eye, so it’s not a human health hazard,” Dr. Brenner noted. “But because viruses and bacteria are much smaller than human cells, far-UVC light can reach their DNA and kill them.”
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