Summary
222 nm light inactivated about 99.9% of airborne seasonal coronaviruses in a lab chamber at a low dose. The authors argue the dose is below the exposure limits of the time.
Key points
- Airborne human coronaviruses 229E and OC43 were inactivated by 222 nm light.
- About 99.9% of airborne virus was inactivated with a dose of about 2 mJ/cm².
- The authors say this dose is within exposure limits set for 222 nm light at the time.