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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?
A bit of the old Ultraviolence, eh?
Ultraviolance: solution to anything and everything (ps: this would make a very good name for a custom minigun)
IIRC, they have UV sterilizers for central HVAC systems. So while it may not sterilize surfaces, it will kill all airborne pathogens.
The UV there is mostly to keep the inverter coils free of mould. Air typically flows too fast to be meaningfully disinfected.
Bleach kills AIDS, doesn’t mean you can inject it into your bloodstream and be okay.
Supposing you brought the light into the body?! Are you going to test it?
They say the eyes are the windows to the soul, it would have to go in through there.
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.
We use uv light stands in the hospital. We will shut down a room and run a uv sanitizer for a bit. It works in some instances but it’s not exactly something you can just leave running all the time. Everyone would probably have a sick tan tho… To go with their skin cancer…
Those are 254nm. Far-UV is 222nm, which doesn’t penetrate or damage skin or the eyes and seems to be completely safe to humans. The main issue is that it can generate ozone, but how significant that is is currently unknown.
Ozone is also used to disinfect, that’s double the disinfection power!!!
Because my curtains are closed
Without bothering to read the article, I look forward to sunburning my retinas like im at a crypto rave.
And bleaching all materials in the room. And slowly destroying anything made of paper or plastic or wood.
The article does mention the issue of safety and how to address it actually
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?
To be fair, nobody complained about getting COVID from that event.
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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What if… we just ran them when people weren’t in the room?
This is already a thing in many hospitals, and has been used extensively even before covid.
And there are also UV systems that can be added to air ducts to kill off airborne pathogens as well. But they’re not cheap and not commonly used outside of medical facilities.
What if, i know, crazy idea but what if you read the fucking article in question?
Ozone is a concern (it’s bad to breathe it), as is using it as a cheap way to do less proper ventilation
It also wouldn’t do much for things like COVID, where ventilation does help
Won’t work in spaces where people are around all day, like offices, but it doesn’t matter. The eye and skin dangers are already addressed for the most part. The major remaing question is ozone and the VOCs it combines with.
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.
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.
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.
Better presence sensors exist, and are only used in such critical situations. These are based on radar and sense the chest movements of people.
I dont think the lights would be on the entire time the room was empty…
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.
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.
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.
It’s definitely easier to tell if something is in a room than it is to tell if nothing is in a room. And sensors still fail at that. Timers would probably be better, since you don’t need disinfection every time a room is used.
If you know the office building will be empty every day at 2AM have the lights do their work between 2-3 every morning.
Fiber, bro…fiber
Pulling shit with fibers could help the constipated too
So you’re saying his internet connection is too slow? I agree
This is the best summary I could come up with:
Ultraviolet retained a small coterie of enthusiasts over the ensuing decades, focused narrowly on preventing transmission of tuberculosis — which has no reliably effective vaccine for adults — in its remaining hotbeds, like homeless shelters.
The biggest test it received, the Tuberculosis Ultraviolet Shelter Study of 1997-2004, demonstrated that “upper room” UV, in which UV-emitting lamps are placed at least 6.9 feet above the floor where they can disinfect air without harming humans, was safe.
It wasn’t — detective work from scholars including Linsey Marr, Jose-Luis Jimenez, and Katherine Randall in the middle of the pandemic determined that this conclusion was based on a misinterpretation of the Wellses’ research that had somehow persisted for decades in the medical profession.
“This is the most difficult talk I’ve had to give in my career,” Jose-Luis Jimenez, a distinguished professor of chemistry at the University of Colorado, told the audience at the first International Congress on Far-UVC Science and Technology this past June.
But 2020 was also an unusually brutal year for airborne disease: 49,783 Americans died from influenza in 2019, for instance (and none from Covid); 1 percent of that number is about 500 people, which starts to feel comparable to the air pollution cost Jimenez identifies.
Jimenez favors using UV in very high-risk locations, such as hospitals, but worries that construction companies, schools, malls, and the like will seize on the potential of far-UV as an excuse not to invest in proper ventilation and filtration, leaving us with the ugly trade-off he identifies.
The original article contains 4,104 words, the summary contains 252 words. Saved 94%. I’m a bot and I’m open source!
I always thought these were pretty cool. I’m not sure how HEV compares to UV though, or if it even works
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.
Shadows.
Well there use to only be disease below the grass because chlorine was the ozone layer and god publicly added it to the earths atmosphere to change the way life was with the population. Disease was also something different that was added. So how does god do this implementing thing with all these conspiracies going on with economics. This was just his world, everything could have been a hamster in a glass box or cage. The natural world or religious world did not have to exist. Things like radiation change everything and same with animals turning, changing, evolving, or magically turning into people. At one point it was weirder than Skyrim and mid evil and everyone was naked within the last 30 years drinking bacteria infested well water. Wells were no good without filtration or heating, but it’s not that bad. Wells are usually all the way to bedrock but may lack ions from moving water like rapids or waterfalls.
To produce uv radiation you can use chlorine, iodine (heating it to 250 or higher will form a gas and emit radiation, it feels wonderful, condense back into metal when it cools), bromine, maybe even other things.
That’s what hydrogen iodine gas is for, but hasn’t been done yet, or they mix it with plastic with everything becoming LED, basically you can chlorinate or attach whatever element you choose, to the plastic molecules as bonds and then melt it down to form the LED bulbs with a filament. But closer to the filament is better seeing how the bulb itself only gets to 150 maybe 200 degrees if left on for long periods of time.
Mercury may not actually produce ultraviolet radiation at all but it could emit some type of rays.
Uv c is just higher strength uv b, there is more chlorine in the bulb or it is heated to a higher temperature. The actual light itself as in photons or electrons don’t matter besides heat that is produced by the filament.
You can also heat the events without producing light and uv radiation is emitted. If you get hit with high enough strength you can turn entirely black over a few days or weeks, even if it’s just for a few seconds. It’s called evolution.
And that’s all Japan cares about first, is sanitation, or at all, sanitation makes everyone feel good but cleaning and eating large amounts did t always go on, there was less poop and people and animals usually visit or live by waves and moving water.
Because disease walks around as a person and is all the government, police, and banks. Even the jury and consumers here in fast food land, why does no one kill them all and live here. There’s natural food, processed food, jobs, cigarettes, booze, pharmacies, clothing, internet, addresses, electronic stores, knock off stores, bong stores, strip clubs, casinos, and now there’s weed stores. Hospitals what do you mean Japan was like a hospital itself. All anyone did was health stuff preparing for sexual things, and some drug use, but cigarette smoking ruined it. They got that mad about it, and probably alcohol, someone must have faked drug laws existing. Somehow there’s some election system or court that ruins it all. Oh well we all behave and lay in bed like we were supposed to with these TVs
Oh yes and there’s disease added to the food/drinks to brainwash everyone into the parasite economics thing that’s them stealing and embezzling everything and acting with it. But nothing could go on without sanitation or narcotic use, these things wanted occupy someone’s brain and seek attention 24 hours a day in the same house as them.
We’d have to starve ourself while working or finding a job but everyone was self employed, celebrities, and or business owners, stock holders. Maybe shareholders didn’t have these issues. There may have been uv c light bulbs in public schools or outdoor street posts which is why they worked so well at pulling everyone’s mind out of disease banking systems, where the disease didn’t even start it. They were just on the money as in a virus or bacteria physically on it, and they were on cards that come in the mail with that as a way to track you. Seems terrible but it for sure ended identity theft and credit card fraud.
There is a setting in most computer monitors and maybe televisions but depends on it, with del it’s a for sure thing that existed, but it’s controlled from a transmitter, it has to get really bad and be the last stand, which it’s getting there. All it does is emit uv c radiation in certain amounts it’s too make sure that it’s an actual person or an animal using the computer. Parasites do weird types of stalking and crazy amounts of conspiracies through stolen computers or computers at places that are left on and it unlocked. They’ll even install software and then sit in some random closet or place using the computer making websites or duplicating things that get sold. It’s weird we assumed they all just used one host.
The uv c light kills the parasite and or bacteria/virus that’s in a human form using the computer. An actual person won’t die from it (a virus or bacteria immediately dies or it severely damages them and it isn’t fixable) possibly even suffer vision loss, I could never stand extremely bright lights until experiencing the radiation I think I had an old dell latitude computer that emitted uv c in small amounts. But noticed that over the years I had trouble keeping my eyes open and couldn’t stand being outside, I used IGF and mgf in my eyes through eye drops 2 mcg a ml, to try and help my blurry vision which I assumed was caused by my eye lashes or could gunk build up in the eye. Eye drops help and did improve vision, my vision got bad but sometimes was like it wasn’t bad but didn’t know what from. Maybe high co2 levels or chemicals in the air. There is hgh for vision issues, that’s what regular doctors used for it. The same amount can cure hairloss just not sure about jintropin curing it. The methionine is important or the most important thing, but it may not be true or just requires more or longer time period to regrow. Ultra violet radiation may also cause hair to grow instead of fall out, male pattern baldness may just be a yeast infection and hair may also fall out from certain steroids but it doesn’t stop it from regrowing.
I slept great and felt very relaxed after the uv c couple second burn into the cornea or staring at the bulb directly or into it for a couple seconds and feeling the zap. It didn’t hurt but was like an electrical sizzle short out followed by feeling great and free.
But these are high strength made for sanitizing a room or probably hundreds of feet, but ultraviolet radiation could travel miles, it doesn’t stop it keeps bouncing off things, but the rays spread out as they move away from the light bulb.
They just may notice their overall sensation of the atmosphere or the world around them changes when the radiation hits their skin or eyes, not sure which. I wonder if daylight LED light bulbs emit small levels of uv c. Probably not but they could. Sometimes uv bulbs were the only white LED bulb that existed, they were on little microscope loupes and things.
At first I didn’t get into them because my skin was red only under the 6000 kelvin daylight bulb.