Wouldn't uv light within the returns kill any virus ?

It can.
https://www.medicalnewstoday.com/articles/324284
UV light could reduce hospital-acquired infections

A new study shows that ultraviolet disinfection technology eliminates up to 97.7 percent of pathogens in the operating room.

www.cidrap.umn.edu/news-perspective/2018...s-hospital-wide

My husband's work has started placing UV lights at the coils of all the A/C units.

Quote: Greta wrote in post #736

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Wouldn't uv light within the returns kill any virus ?

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I don't know. I thought it was a pretty standard upgrade in A/C units these days. Hospitals seem the exact location that such a thing was designed for.

Quote: Greta wrote in post #742

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I don't know. I thought it was a pretty standard upgrade in A/C units these days. Hospitals seem the exact location that such a thing was designed for.

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Speaking of hospitals. I was looking up the information on the studies that guesstimate the number of deaths per year caused by medical mistakes in hospitals. It's something on the order of 300,000 per year. Wonder if we'll have that many deaths from Kung Flu.

Quote: Greta wrote in post #744

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Speaking of hospitals. I was looking up the information on the studies that guesstimate the number of deaths per year caused by medical mistakes in hospitals. It's something on the order of 300,000 per year. Wonder if we'll have that many deaths from Kung Flu.

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And now the madness get's to MY county!

https://www.itemonline.com/coronavirus/w...7162df40ff.html