Without bothering to read the article, I look forward to sunburning my retinas like im at a crypto rave.

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.

"X can kill gems! Why don't we use X everywhere?"

X: Thing that can kill humans too. And/or cause cancer.

See also:

• Fire

• chlorine gas

• dehydration

• Boiling water

• Radiation

"Hydroflouric Acid can kill almost all viruses in a bowl. Why aren't we eating it?"

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.

cuz it literally burns your eye holes

This thread might be the worst example of "I didn't read the article, but I'll comment anyway" that I've seen.

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.

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..

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.

Pretty counterintuitive that in order to make UV less dangerous for humans, you can make it more ionizing. Anyway, I'd expect problems with degradation/yellowing of plastics, bleaching of everything in range, and massive issues with indoor ozone and some other forms of air pollution

This is why. https://www.theverge.com/2023/11/6/23948464/bored-ape-nft-event-eye-injury-sunburn-uv-exposure

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.

Imagine writing this headline in a universe where daylight exists rofl.

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.

Did anyone actually read the article? The only guy whose question wasn't already answered by the article was the one about yellowed plastics, lol.

If it kills all the viruses it also kills you lol

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

~~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.

Because it burns you. That's the answer. It kills your skin cells and eyes the same way it kills the bacteria. Also, it is everywhere, it's fucking outside. The sun. Fucking stupid. Idiots.

Know what else kills bacteria? Bleach. So get chugging.

So stupid.

This thing kills all living things so why don't we bathe ourselves in it?

Do you want Ultraviolet resistant viruses?

I worked for a company that made a UVC light system for sterilization. The amount of safety you have to build in so people wont nuke themselves makes them hard to use.Also, the bulbs we used were delicate and had issues constantly.

If all humans died there wouldn't be anyone getting sick at all from anything!

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.