Ask a COVID-19 Question

Q: Can UV light be used to inactivate the virus?

The antimicrobial potential of UVC light has long been [established](https://www.nature.com/articles/s41598-018-21058-w). Its widespread use in public settings is limited due to the ability of conventional UVC light to cause cancer and cataracts. New efforts to develop far\-UVC light (207–222 nm) wands or other devices for more widespread use to inactivate microorganisms without posing harm to human skin are underway. Visit the [Food and Drug Administration's FAQ](https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/uv-lights-and-lamps-ultraviolet-c-radiation-disinfection-and-coronavirus) to learn more about UV light and the coronavirus that causes COVID\-19. Updated 3 December 2020

Can UV light be used to inactivate the virus?

The antimicrobial potential of UVC light has long been established. Its widespread use in public settings is limited due to the ability of conventional UVC light to cause cancer and cataracts. New efforts to develop far-UVC light (207–222 nm) wands or other devices for more widespread use to inactivate microorganisms without posing harm to human skin are underway.

Visit the Food and Drug Administration's FAQ to learn more about UV light and the coronavirus that causes COVID-19.

Updated 3 December 2020