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.
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Specific UV light kills MRSA without damaging human tissue
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Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses
Covid-killing' light tested in office pods – UKRI
COVID UV light experiment blamed for eye damage at college
Frontiers Exploring the Applicability of Robot-Assisted UV Disinfection in Radiology
Atmosphere, Free Full-Text