Study shows proof that a safer UV light effectively kills virus causing Covid-19

Article note: I've been running light-tight reflective lined containers (repurposed low-end soft side coolers) with mercury vapor lamps for sterilization of lab equipment all semester, continuing to feel validated that that works, even though COVID-19 surface transmission seems to be low risk. Downside: photokeratitis in a matter of seconds if you look at them out of the enclosure. Having that kind of material-safe, easy sterilization without the whole "254nm UVC is terrible for humans" problem is awesome, though I'm not sure how the ramp up of 222nm light sources will go, I think the only 222nm narrow-band source that's commercially viable are KrCl Excimer lamps, which are slightly exotic.