Ultraviolet light can kill almost all the viruses in a room. Why isn’t it everywhere?::Can special lightbulbs end the next pandemic before it starts?
Without bothering to read the article, I look forward to sunburning my retinas like im at a crypto rave.
Joke aside, looks like they’re using a higher bandwidth of light, 222nm compared to more common 254nm uv for medical uses. It doesn’t penetrate the skin or eyes sufficiently to cause damage.
But will it activate my transitions lenses so I look like a cool guy wearing sunglasses indoors?
And bleaching all materials in the room. And slowly destroying anything made of paper or plastic or wood.
What if, and hear me out,
What if…
What if… we just ran them when people weren’t in the room? 🤯
Crazy what happens when you can come up with your own thoughts instead of parroting reddit comments ad nauseam.
Lemmy users don’t respond well to reasonable criticism or facts.
Only toxic and stupid comments allowed.
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Because the spectrum required (UV-C) to do so is harmful to humans and the environment. Putting it EVERYWHERE would cause all kinds of problems.
The article blathers on for page after page after page talking about technology is back in the '60s and '70s, an experimental technology using UV wavelengths that supposedly don’t bother humans. And systems that only point up in a room like the UV light isn’t going to get reflected into your eyeballs. I get the feeling the author doesn’t have much of a background and was really just trying to stitch a bunch of research together without really understanding most of it.
You can safely blast the shit out of central air ducts, but it doesn’t do anything for infected breathing viruses into the air sitting next to you or the people that touched the bathroom door handle.
I suspect if we see any real non biased studies come out of any of this equipment the difference will be close to within the error bar.
You’re assuming it’s not more “AI” nonsense though.
The article talks about this specifically. Far-UV (222nm) doesn’t penetrate skin or eyes and is harmless to humans. The usual UV-C used for disinfection is 254nm and is quite dangerous.
Will there be any benefit to say putting it in the air duct? Like on a forced air system the main exhaust from the unit (I’m guessing it’s exhaust but that sounds wrong). I know some air filters are supposed to filter out airborne viruses and whatnot but I have no way of testing that. But I know what ultraviolet will do. And I’d have to assume sitting in the metal ductwork wouldn’t really hurt anything.
This article is a longer version of “bleach kills it fast - what if that could be brought inside the body somehow?”
Just eat a tide pod and wash it down with some bleach!
“Hydroflouric Acid can kill almost all viruses in a bowl. Why aren’t we eating it?”
The people who have are not around anymore.
Because it’s great at killing things, including human skin. Seriously, my local gym has people practically sign their life away before letting them into a UV-A/B tanning booth. No way are you putting the even worse UV-C bulbs out in public. That’s how people got their retinas fried at a crypto conference in Hong Kong last year.
Yo what?! You have a link about that retina destroying conference?
https://www.theguardian.com/technology/2023/nov/06/guests-bored-ape-event-hong-kong-vision-problems
It was a Bored Ape event "ApeFest’ in November. They used harmful UV bulbs instead of regular black light for decoration.
That’s wild! Appreciate the follow up.
People think I’m nuts when I wear sunglasses on cloudy days, but my eyes hurt. Idk why they don’t hurt the same way sunny days, probably I don’t squint when it’s not so sunny.
Probably the scattering effect of the clouds. Instead of light coming from one direction, which you can angle away from to reduce intensity, the diffused light from the clouds is bouncing every which way. Which while making the intensity less, instead keeps it constant no matter where you face. I often wear sunglasses while driving on cloudy days for similar reasons.
Basically, looking at direct sunlight will obviously be more damaging, but diffused light doesn’t give you a break.
cuz it literally burns your eye holes
UV light is both: A. Damaging to eyesight. B. Invisible.
You won’t know how much damage you’re doing to yourself until the damage has been done. This is how you give mass amounts of people eye trauma, and potentially blindness.
UV light is regularly used on HVAC systems and water purification systems.
There are systems used in hospitals that are automated which will roll into an empty room and then turn on to disinfect the room. They are usually used in hospitals but I’ve seen them used in places like China during their zero covid crackdown on public transportation.
Some transit systems in China even converted a paint booths to disinfect with UV so they could drive buses through. All of which is probably overkill as prolonged exposure to sunlight will do the same thing.
Exposure to UV light that is intense enough to kill viruses within seconds is very bad for humans. I pulled the cover off a system I was taking marketing pictures for while it was turned on. Within a thirty to sixty seconds I could feel like I was getting a sunburn on my arm that was closest to the light. I wouldn’t want to risk a direct UV system turning on while someone is sleeping and burning them. As a result most systems are indirect and rely on a combination of UV and HEPA filters to disinfect airborne viruses.
There are other ways to disinfect surfaces. Bleach or chlorine is cheap, simple and won’t harm humans. Chlorine gas can be used to kill really bad viruses like anthrax. Chlorine gas was used to disinfect the Federal buildings that had been contaminated in the 2001 anthrax attacks. Many detail shops, rental car agencies and public transit systems in the US use Chlorine gas on vehicles to disinfect or more commonly remove nasty odors from vehicles. The gas can seep into all cracks/crevices and get into the HVAC system ductwork in ways UV light can not. If you ever get into a car that faintly smells like a pool, chances are it has been gassed recently to kill an odor.
Because it is very dangerous and people will absolutely let their toddler play next to the lamp. This is why it’s basically only used in places like hospitals where access can be controlled.
Imagine writing this headline in a universe where daylight exists rofl.
It’s not as if every part of your house has exposure to direct sunlight. They aren’t made for use in houses, though. Think more like hospital rooms or classrooms on a cycle when nobody is around.
There are UV light robots at my hospital that drive into rooms and blast it with high power UVB for 15 minutes or so to help disinfect.
Jeez, every response in here is about it burning your eyes. Thing is, people aren’t in every room all the time. Have it set to a sensor, same as the lights, and you can quickly sanitize large spaces that are unoccupied. Elevators, airplanes, etc can be sanitized the second they’re empty. My FIL is a retired GE engineer working on this technology.
Have it set to a sensor, same as the lights
Given how often the lights go out at work while I’m taking a dump, this isn’t the best idea.
Fiber, bro…fiber
So you’re saying his internet connection is too slow? I agree
Pulling shit with fibers could help the constipated too
Sounds dangerous
I have lights go out on me all the time at the office, just sitting mildly still. What happens if someone falls asleep in the room? Or worse a kid? Severe sunburn and possible blindness
Or what if they’re black? I’ve read so many stories about sensors not detecting people simply because they have darker skin.
I dont think the lights would be on the entire time the room was empty…
I’ve been in a restroom and had the lights turn off on me because a sensor didn’t detect someone was still I the room. I’d bet good money I’m not the only one. Sensors, presently, are either invasive or inaccurate. Or both.
The light can be tucked away into the HVAC. The light never needs to hit anyone. You got central heating/cooling? One light, whole building. It’s almost criminal this isn’t common.
That is… Genius, the light probably needs some time to work but the idea of disinfecting a at a central location can work well for indoor air.
But my sweaty mouse pad, and dust stuck on the floor would need another system.
Ever noticed how stuff left out in the sun gets bleached out and doesn’t last very long? Imagine leaving your carpet and all your furniture out in the sun. UV light is very hard on stuff.
Oof, ultraviolet light. This makes me flashback to April 2020, shortly after the U.S. shutdown for the Coronavirus pandemic.
If you have 1:57 minutes of free time, watch this video of former President Donald Trump addressing the nation on the response to the novel coronavirus.
Warning: If you experience second-hand embarassment, try not to watch Dr. Birx in the background squirm in her seat as she sits through the idiot rambling of the orange man. Immediately after this press conference, corporations and media companies pushed out critical warnings to Americans to not drink or inject disinfectants like bleach.
- YouTube link: https://youtu.be/BalDN6iGYpE
- Piped link (privacy-respecting frontend for YouTube): https://piped.video/watch?v=BalDN6iGYpE
“I would like [Dr. Birx] to speak to the medical doctors. to see if there is any way that you can apply light and heat to cure [covid-19]? You know? If you could? And maybe you can, maybe you can’t? Again, I say maybe you can, maybe you can’t?”
“I’m not a doctor, but I’m like a person who has a good…”
Gestures vaguely at his head
“… you know what.” ~ Former President Donald Trump
This video always has the beginning chopped off and misses the KEY thing about the whole fiasco. It was even dumber than you think.
Trump is walking to the podium and stops to examine a CDC infographic on an easel. An infographic about ways to sterilize surfaces.
All the bullshit Trump is spewing came from 5-seconds of reading that poster.
~~Because that is specifically UV-C and it’s harmful to humans too. ~~
~~for example: https://wwd.com/eye/parties/hypebeast-party-uv-lights-injuries-11036559/~~
Correction: the article is about even smaller wavelength UV which is not as harmful to humans, my bad.
Bleach kills AIDS, doesn’t mean you can inject it into your bloodstream and be okay.
This is the dumbest shit. It kills all kinds of stuff, not just bad viruses. Homes are covered in bacteria which you’ve adapted to and are helpful. Kind of like gut bacteria, but outside your body. Killing all of them isn’t a good idea.
If all humans died there wouldn’t be anyone getting sick at all from anything!
I found the A.I.!!! Get’em!
