Type of ultraviolet light most effective at killing coronavirus is also the safest to use around people

UV lights come in a variety of different wavelengths, but not all are equally effective at disinfection. Researchers tested a number of commercially available lights to find the best.

Ultraviolet germicidal irradiation - Wikipedia

Using UV light to kill coronavirus: The benefits and risks - CNET

Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses

Predicting airborne coronavirus inactivation by far-UVC in populated rooms using a high-fidelity coupled radiation-CFD model

How UV Light and Antimicrobial LEDs Differ - Vyv Tech

Ultraviolet Germicidal UV-C Light

More Proof That Far-UV Lamps Could Curb Pandemics - IEEE Spectrum

Specific UV light wavelength could offer low-cost, safe way to curb COVID-19 spread, CU Boulder Today

Using UV light to kill coronavirus: The benefits and risks - CNET