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New type of ultraviolet light makes indoor air as safe as outdoors (Far-UVC (222 nm) light harmless to eyes & skin)
Medical Xpress / Columbia University / Scientific Reports ^ | Mar. 23, 2022

Posted on 03/23/2022 1:25:22 PM PDT by ConservativeMind

A new type of ultraviolet light that is safe for people took less than five minutes to reduce the level of indoor airborne microbes by more than 98%, a joint study has found. Even as microbes continued to be sprayed into the room, the level remained very low as long as the lights were on.

The study suggests that far-UVC light from lamps installed in the ceiling could be a highly effective passive technology for reducing person-to-person transmission of airborne-mediated diseases such as COVID and influenza indoors, and lowering the risk of the next pandemic.

"Far-UVC rapidly reduces the amount of active microbes in the indoor air to almost zero, making indoor air essentially as safe as outdoor air," says David Brenner, Ph.D.

"Far-UVC light is simple to install, it's inexpensive, it doesn't need people to change their behavior, and above all it's a safe way to prevent the transmission of any virus, including the COVID virus and its variants, as well as influenza and also any potential future pandemic viruses," Brenner says.

During the experiment, a sprayer continuously emitted an aerosol mist of S. aureus bacteria into the room. (This microbe was chosen because it is slightly less sensitive to far-UVC light than coronaviruses, providing the researchers with an appropriately conservative model.) When the concentration of microbes in the room stabilized, the researchers turned on commercially available overhead far-UVC lamps.

At an intensity based on the current regulatory limit on far-UVC light exposure, the far-UVC lamps inactivated more than 98% of the airborne microbes in just five minutes. The low level of viable microbes was maintained over time, even though microbes continued to be sprayed into the room.

(Excerpt) Read more at medicalxpress.com ...


TOPICS: Health/Medicine
KEYWORDS: faruvc; indoorair; ultravioletlight; uv
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This 222 nm UV light is available now.
1 posted on 03/23/2022 1:25:22 PM PDT by ConservativeMind
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To: Pete from Shawnee Mission; Mazey; ckilmer; goodnesswins; Jane Long; BusterDog; jy8z; ...

The “Take Charge Of Your Health” Ping List

This potentially high volume ping list is for health articles and studies which describe something you or your doctor, when informed, may be able to implement for your benefit.

Now keeping a new list (“Common Issues”) for conditions expected to only concern at least 1% of the population. Ask to be on either the “Common Issues” or “Everything” list.

Please email or private message me if you want on or off of a list and of which list you desire.

2 posted on 03/23/2022 1:25:51 PM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
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To: ConservativeMind

Not to be overly pedantic, but I don’t think the type of light is new - perhaps the lamp, but not the light itself.


3 posted on 03/23/2022 1:27:11 PM PDT by Quality_Not_Quantity ("...for the sake of His name." Psalm 23:3)
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To: ConservativeMind; Tilted Irish Kilt; ransomnote

Ping


4 posted on 03/23/2022 1:28:23 PM PDT by metmom (...fixing our eyes on Jesus, the Author and Perfecter of our faith…)
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To: Quality_Not_Quantity

I was thinking the same thing.


5 posted on 03/23/2022 1:30:20 PM PDT by posterchild
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To: Quality_Not_Quantity

Regardless, it sounds like a winner.


6 posted on 03/23/2022 1:34:03 PM PDT by Two Kids' Dad (((( When tyranny becomes law, resistance becomes duty. ))))
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To: ConservativeMind

Remember a year ago when they told us that UV doesn’t really disinfect (bc they wanted people getting vaxxed instead of relying on other methods), despite that making absolutely no scientific sense?


7 posted on 03/23/2022 1:36:16 PM PDT by Yashcheritsiy (I'd rather have one king 3000 miles away that 3000 kings one mile away)
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To: ConservativeMind

The utility of Keywords...

https://freerepublic.com/tag/faruvc/index


8 posted on 03/23/2022 1:38:27 PM PDT by deks
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To: Two Kids' Dad

Far UV IS where the radiation starts causing cellular damage in biological tissue.


9 posted on 03/23/2022 1:39:05 PM PDT by GingisK
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To: ConservativeMind

“harmless to eyes & skin”

Uh huh. You go ahead and be the guinea pig then, I’ll wait and see just in case your DNA melts and you become sterile.


10 posted on 03/23/2022 1:39:40 PM PDT by Boogieman
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To: Yashcheritsiy
Remember a year ago when they told us that

Masks don't work, 15 days needed to slow the spread, Kids need not worry, we don't need to lock things down, Hunter's laptop is a Russian hoax...

11 posted on 03/23/2022 1:40:08 PM PDT by 1Old Pro
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To: ConservativeMind

S. aureus bacteria is a gram positive bacteria and not a virus.

It can be a very deadly bacteria for post op patients and other patients in a hospital setting.


12 posted on 03/23/2022 1:41:48 PM PDT by Grampa Dave (Playing “Make Believe” is for children, time to grow up!)
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To: ConservativeMind

What about opening windows when weather is nice?


13 posted on 03/23/2022 1:47:54 PM PDT by AndyTheBear
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To: ConservativeMind

Simple no cost alternative is opening a window.


14 posted on 03/23/2022 1:49:17 PM PDT by bgill (Which came first, the vax or the virus?)
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To: Quality_Not_Quantity

Came here to say that.


15 posted on 03/23/2022 1:50:57 PM PDT by fretzer
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To: Quality_Not_Quantity

My (parochial) grade school had these lights back in the 1950s.


16 posted on 03/23/2022 1:51:02 PM PDT by FroggyTheGremlim (I'll be good, I will, I will!)
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To: ConservativeMind

Sounds like a good idea for public restrooms that have those hi pressure low volume flush units. All that gets aerosolized and then inhaled or clings to the front of the mask you’ve been wearing and hen gets breathed in for the rest of the day.

Just sayin...


17 posted on 03/23/2022 1:54:53 PM PDT by glorgau
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To: ConservativeMind
So 222 nm UV-C light inactivated S. aureus bacteria. What does its effect on bacteria tell us about its effect on virus virions? Are bacteria good proxies for virions?

A virus is a small collection of genetic code, either DNA or RNA, surrounded by a protein coat.

A bacterium is a single-celled microorganisms lacking a true nucleus and organelles such as mitochondria, chloroplasts, and lysosomes. Its genetic material consists of a single loop of double-stranded DNA.

18 posted on 03/23/2022 1:55:29 PM PDT by ProtectOurFreedom (“Today I will do what others won't, so tomorrow I can accomplish what others can't.” ~ Jerry Ri)
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To: ConservativeMind

UVC can be very dangerous. Avoid direct exposure to it.


19 posted on 03/23/2022 1:59:16 PM PDT by chickenlips (Neuter your politicians)
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To: ConservativeMind

But they’re not cheap.😳


20 posted on 03/23/2022 2:12:36 PM PDT by BiteYourSelf ( Earth first we'll strip mine the other planets later.)
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