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968,661 Views • Feb 15, 2024 • Click to toggle off description
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When you think of disinfecting a space, what comes to mind? Wipes? Gels? Sprays? Maybe air purifiers or effective HVAC systems? All of these are great defenses against viruses and bacteria, but one thing has been missing from the toolkit despite our knowing about it for over a century: light.
Ultraviolet light is an incredibly powerful disinfectant. Study after study has proven that it can obliterate viruses and bacteria, and yet it’s not often thought about as a defense against germs. In fact, when most people think of UV, they think of the harmful rays from the sun that cause cancer — not the PR you want when advertising, obviously. Luckily, a few years after the pandemic lockdowns, researchers have found a type of UV that isn’t strong enough to penetrate human skin but still effectively stops the germs. Could it be our next defense? Check out the video above to learn more.
Don’t forget to read the full article on our website by Dylan Matthews: www.vox.com/the-highlight/23972651/ultraviolet-dis…
Studies on far-UV’s effectiveness against various viruses can be found here: www.nature.com/articles/s41598-020-67211-2
www.nature.com/articles/s41598-018-21058-w
www.nature.com/articles/s41598-022-08462-z
For more on ozone production (including Barber’s study):
pubs.acs.org/doi/full/10.1021/acs.est.3c05680
(MIT’s write-up on her study: news.mit.edu/2023/germicidal-uv-lights-could-be-pr…)
pubs.acs.org/doi/full/10.1021/acs.estlett.3c00314
The ill-fated mouse study (even though they didn’t get cancer this time, we’re still sad about it!):
onlinelibrary.wiley.com/doi/full/10.1111/php.13269
The original study from 1937 can be found here:
ghdcenter.hms.harvard.edu/files/ghd_dubai/files/we…
For more on 1Day Sooner and Far UV Technologies:
www.1daysooner.org/about/
faruv.com/
Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out www.vox.com/.
Watch our full video catalog: goo.gl/IZONyE
Follow Vox on Facebook: goo.gl/U2g06o
Or Twitter: goo.gl/XFrZ5H
Views : 968,661
Genre: News & Politics
Date of upload: Feb 15, 2024 ^^
Rating : 4.887 (745/25,626 LTDR)
RYD date created : 2024-05-03T13:22:48.030461Z
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YouTube Comments - 989 Comments
Top Comments of this video!! :3
My biggest fear getting a Far UV light bulb would be that manufacturers cut costs and ship defected UV lights that are harmful
2.3K |
Another thing to be considered is that UV is EXTREMELY damaging to some materials such as plastics. there would be unexpected costs on paints , computers, appliances, Anything with plastic on it.
1.9K |
"low wavelength" is a confusing way to say "short wavelength". It would seem less confusing to say "short" since the term "low frequency" is associated with long wavelengths (not short wavelengths like UV-C)
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Vox unfortunately missed a few very important points to UV. HVAC Enginner here. For the last 100 years UV lights have largely been mercury lamps which have their own health risks. LED technology is getting there, but it hasn't got to the point of commercial usage. I am also surprised how much they glossed over how HVAC systems for non-residential often use UV for coil cleaning and you can add lights more to clean the air. I guess they simply don't understand you can add this to the airstream of 100% OA system and provide relatively clean air for building occupants. Also, you STILL need filtration and standard is to go with at least a MERV-13 filter as a final filter before entering most spaces. This is a 7min video but the fact they didn't talk more than a few words in this aspect of air treatment is mind boggling.
2K |
"Low wavelength" is the weirdest expression, and I don't think I've heard it before.
Short wavelength - yes
Low frequency (which means LONG wavelength) also yes
Low wavelength - never
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One of the biggest uses for UV light is in water/wastewater treatment. Was not mentioned at all. Helps with lowering the level of chlorine that is needed on water supplies drastically as you don't need as much to have a chlorine residual. Also the UV bulbs are secured in a vessel where it is not harmful to humans.
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I never realized how versatile and effective UV light can be for disinfection. It's amazing how many different applications it has!
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I have a UV sterilization "box" for my CPAP equipment. One unmentioned problem is how BAD the UV sterilization process makes the tubing and other pieces smell. As it radiates microscopic stuff it causes the release of volatile organic compounds (VOCs). This odor has been described as a sulfuric smell similar to rotten eggs, garlic, or burning hair. It's so nasty that I've reverted to cleaning with baking soda and non-scented dishwashing soap. So much for convenience.
195 |
I use UV bulbs to eradicate mold in housing areas, works like a charm, just can't forget protective gear
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In the video game Dying Light 2, 1 way to survive against the zombie infection is to be near UV lights. It doesn't cure the characters of the zombie virus, but it does slow down the infection spreading in their bodies at night.
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The problem with UV light killing those bad viruses is, that 99.999% of the good microbes out there are killed as well...
Living in a too sterile environment is in the long term not healthy either.
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So look at the date I post this. This is something I have already commented on. The best 2 places this could be utilized would be in your refrigerator and in your bath/shower, not the entire bathroom. If you set those 2 locations up with a timer, you would get clean food that would last longer in the fridge and a shower that wouldn't grow pink/black patches. The negative side would be that the materials used in those locations would probably deteriorate a tiny bit faster, meaning that corporations would be happy. That's the offset foe getting the benefits of the light. Since it would come with a timer, you could also just choose not to use it as often. Point made here on this date money will be made later.
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Sometime interesting is during the pandemic we were manufacturing some LED UV lights for the military, and a strange thing happened we found when we shined a UV light on oil it lost its stickiness and fell to the ground. It was super odd. We were all just like "Did you know UV light did that?" Not sure an application for that but it was an interesting thing that we didn't know UV did. As soon as you removed the light the oil returned to being sticky. Kinda weird to see, I'm sure there is probably an application here, but we were just trying to disinfect surfaces.
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I got hired at a light source company during the pandemic and business was booming for them
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One benefit not mentioned is that this will also work on the so called "super bugs" that are resistant to current antibiotics. They can't build up a defense against this.
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I work for a company that is working toward getting this FDA approved by the end of this year, we’re getting there!
22 |
Thanks for this! Very informative!
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Having UV as a solution for cleanliness is misguided because it kills all microbes indiscriminately - microbes that are beneficial to humans and their environment. In some settings where cleanliness is of the utmost importance UV can be a good solution - such as hospital and laboratory settings where it is already in use.
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Thanks for useful and informative video as always ❤❤❤
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@israrisrar3800
2 months ago
"why isn't it everywhere?" Should be a docu series
3K |