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LiberalArkie

(15,715 posts)
Thu Jun 25, 2020, 10:44 AM Jun 2020

Far-UVC Light Safely Kills Airborne Coronaviruses

June 24, 2020

More than 99.9% of seasonal coronaviruses present in airborne droplets were killed when exposed to a particular wavelength of ultraviolet light that is safe to use around humans, a new study at Columbia University Irving Medical Center has found.

“Based on our results, continuous airborne disinfection with far-UVC light at the current regulatory limit could greatly reduce the level of airborne virus in indoor environments occupied by people,” says the study’s lead author David Brenner, PhD, Higgins Professor of Radiation Biophysics at Columbia University Vagelos College of Physicians and Surgeons and director of the Center for Radiological Research at Columbia University Irving Medical Center.

The research was published today in Scientific Reports.

Snip


https://www.cuimc.columbia.edu/news/far-uvc-light-safely-kills-airborne-coronaviruses

10 replies = new reply since forum marked as read
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Blue Owl

(50,356 posts)
1. How soon until we hear Dumbass Donny say:
Thu Jun 25, 2020, 10:51 AM
Jun 2020

"Hit the body beautifully with perfect, tremendous Far-UVC light..."

hunter

(38,311 posts)
2. That's still within the range of UV light that produces ozone.
Thu Jun 25, 2020, 11:05 AM
Jun 2020

Ozone is a disinfectant as well, but it's not something you want to breathe.

LiberalArkie

(15,715 posts)
3. Just light. Like a UV party light but even shorter wavelength. There is uv-c at 245nm but it will
Thu Jun 25, 2020, 11:20 AM
Jun 2020

penetrate the skin.

However there has been a breakthrough, its been proven that far-UVC light (207-222 nm) efficiently inactivates bacteria without harm to exposed mammalian skin.

LiberalArkie

(15,715 posts)
7. At the wave length they are talking about, the UV-C is stopped by the tears on the cornea and
Thu Jun 25, 2020, 02:02 PM
Jun 2020

by the dead skin on the body.

KT2000

(20,577 posts)
5. thank you!
Thu Jun 25, 2020, 01:37 PM
Jun 2020

I have seen ads for devices that a person wears that emits ozone, to fight the virus. One product has the device on the face mask.

Rstrstx

(1,399 posts)
8. Sounds good
Thu Jun 25, 2020, 02:55 PM
Jun 2020

In the short term I can see a lot of businesses installing these. Long term I think commercial buildings may have this wavelength incorporated into their lighting plus a variety of UV and other sorts of virus-killing filters installed in their HVAC systems.

LiberalArkie

(15,715 posts)
9. Those that are still working in the cube farms will probably start getting healthier with the
Thu Jun 25, 2020, 03:56 PM
Jun 2020

retrofits. Colds and flu will find itself hard to spread there.

 

Trumpocalypse

(6,143 posts)
10. Maybe President Trump
Thu Jun 25, 2020, 04:29 PM
Jun 2020

can have the Space Force launch satellites to bath the earth in UVC light to annihilate the virus. He can call it Operation Annihilate!

And if you don't get the joke, click here.

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