UVC Germicidal Bulb - DANGEROUS But Useful Ultraviolet Light
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- Опубликовано: 10 май 2020
- In this video I review this UVC ultraviolet lamp/bulb and explain how it works, if it can kill viruses, if it produces ozone and whether or not that's all a good idea. I go over the risks and benefits of owning one of these lights and talk about some of the things it's helpful for.
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The most spot-on sensible UV and ozone video I've seen, I think, among 40 or 50, well done.
Please repost the links. They don't work
Thanks for letting me know. It's fixed now.
I have a ozone that I never used yet. I have plants and live in a small place. I wanted to know if I move the plants into the bathroom and turn the lamp on. How long do I keep the plants in the bathroom.
If I have more questions before use, how can I reach you?
Wow! Thanks a lot for the warnings! I just salvaged a UVC bulb from a broken air purifier and was testing it out with no protection. I will not be doing that again. Appreciate your video, good Sir!
Thank you. Be safe!
Hey Derek! Well, if you are still alive ,(lol) yeah, I just salvaged 2 12 inch fluorescent type bulbs-fixtures-ballast from an old air purifier contraption, and I ran it out in the open near where I was working, like 5- 15 feet away and that night eyes felt scratchy and went to sleep and woke up early and eyes were BURNING and OMG yeah it sucked and I thought I might have to call in sick but after a couple hours they felt better . Lesson learned. These dam things are powerful. But you don't realize it till later.😎
@@markhonea2461 That's scary stuff!
Similar to what my mom has going on now from radiation therapy to treat some cancer she had in her eyes, only it is worse in her case.. She can no longer see her own face in the mirror. And we think that is probably permanent.
But, to not just totally bum everyone out, her treatment was successful in that her eyes are now cancer free!
💪🧐👌
I got an old xenon bulb from my dad, he salvaged it from some sort of old broken machine. So I tried to turn it on with a sketchy Chinese high voltage power supply, the light was very intense. Luckily I only turned it on for short amount of time because my dad saw what I was doing and told me that the bulb probably emits UV light and possibly small amounts of x-rays😅
Luckily I didn’t have any side effects from the UV because my exposure was very brief.
After my third time burning my eyes with the same bulb in 2 weeks not knowing what was happening, this explains it all.i was dumb and didnt think I'd need eye protection for the very short time I was exposed, about 2 minutes spread over 7 hours. These things arent for kids or the unknowing. Wear ppe always
Even ONE SECOND of accidental exposure will make your eyes feel strained, a bit more and you'll get watery eyes and even more and you'll get the dreaded "welder's eyes" ie a very painful feeling of sand in your eyes.
Great explanation! Could've read about it but you did me the favor. Thank you.
Best info on this topic that I have found -thank you
I was about to buy this for fun, but I saw this video. Thanks for the information
No problem.
Excellent review without being overly heavy on the technical physics.
Thanks Thomas.
And it should be pointed out that the UVC light does not work in areas where shadow is being cast. You’ll need to move the lamp to areas of shadows in order to disinfect those areas.
Yes, UVC can only sterilise things it comes into direct contact with, a bit like how water can only wet things it comes into contact with. This is why the ozone-producing UVC lamps such as the one in my video can be a bit more effective because the ozone spreads throughout the whole room, onto shaded areas, under beds and in places the light doesn't reach. But ozone has its own risks too.
I've been reading some scholarly articles about UVC light and found out the light doesn't even penetrate dust! So surfaces have to be wiped down, to begin with, for it to be effective. Same with Hydrogen peroxide. You have to spray it on an already clean surface and leave it for several minutes before it effectively kills germs. Like this guy said, go with the UVC + ozone option.
Thanks a lot mate, great review - very informative 👍
I'm glad it helped. Thanks for the feedback.
Excellent video, thank you for posting
Thank you for saving my already damaged eyes. This was everything I needed to know about these. I'll definitely get some ppe eyewear if I go down the route of using these bulbs.
A very wise idea.
You've got such a smooth calming voice
Lovely voice I'd say
Thank you so much 🙏
Good presentation and useful information
Thanks 😮for sharing never to look at a UVC light, never to be in the same room with it on and don’t enter the room 45 minutes after sterilization
Basically any infection departments in any hospital has those for daily room treatments. Why basic things have become so controversial these days :D Thanks for the video!
Because they're available to anyone that can login to the internet, and they cost very less. Some people might not be aware of the dangers and think of it as a cool blue light.
@@harish2309 Please don't make the governments ban those bulbs for the general public or we're all gonna have to stockpile some.
I've actually got this same bulb; Coospider. The amount of Ozone it outputs isn't actually enough to properly shock a room- you'd have to have the bulb running for 12-24 hours to get the amount of ozone needed to kill odors instead of just temporarily masking it. Ozone also inhibits UVC, so you actually get less UVC radiation with ozone as opposed one that's been doped with ozone-blocker.
If you want to crank the danger level to 11 get a 253/185nm lamp. The 253 gives off the germicidal light like you expect from a germicidal bulb, but the 185 breaks apart the oxygen in the air and makes ozone.
The one I featured in the video produces a lot of ozone and I talked about that. It's the reason I chose it.
ozone isn't as bad as people make it out to be. It does work wonders on bacteria where ozone reacts with the water in them which then becomes peroxide. A few years ago i built an ozone generator which can be used to "shock" mold as part of the cleaning process.
Thank you.
HI, really enjoyed the review. Can i use some ofnthr clips from this video for a UVC toilet project im working on?
This is a great review! I was thinking of adding a few of these to my crawlspace under the house. I think I will do that. I'm planning on turning them on for maybe 30 minutes at a time every so often to keep mold from growing. If you think this is a good idea please leave me a reply.
Thanks again for the great info! 👍
That's exactly what I use it for, but in the basement. I run it for about 10 minutes a few times per week.
You could put them on an automatic timer too, though if it's in a crawl space I would run it for like an hour or two a day to keep the ozone concentration up, and make sure you put enough lights in to give full coverage, I'd suggest having one light every 20-25 feet or so, you need a lot of power in such a moist and dirty environment. I'll bet it will control the rats too lol. That or you'll just have a bunch of blind rats bumping around🤣.
Good info to have
Good video! Thanks!!!!!!!
Thank you.
I think it's important to note that a lot of the newer LED UVC bulbs sold on Amazon are a scam and don't emit any UVC. I got an LED one and it didn't register on my UVC detector and it did not produce any smells either. Later I bought a mercury gas UVC bulb similar to yours and it's the real deal. LED UVC bulbs seem to have a poor track record.
That has been my experience as well. I've tested a number of "UVC" led sterilising products from Amazon that were outright scams. What's especially distasteful about that is that these give people the false belief that they have sterilised their countertops/vegetables/sinks when they have done nothing at all. And that's creating a health risk.
Buy one with remote control 🙏
Wanting a good one for downstairs where carpet has mites (I believe) bad smell. Also want to use one just for rooms where I can't find the mold but know its there. Disabled so I need good prices and trusted sourced. I have been ripped off by the corn cobb lamps. Over $50. Looking for good deal. Many are sold out. In USA
It's my understanding that first, uvc light can't penetrate dust or dirt. Hidden mold wouldn't be affected by the light because the surfaces that are keeping it hidden would not be penetrated.
And second, the closer the uvc light is to the bacteria, virus or fungi, the more effective it is. It appears that distances more than 5 feet from the light aren't affected by the light as shown in other videos on RUclips.
Hey, where can I found the piano theme at 3:05? Please
I make the music for these videos myself.
Thank you for this information. However, I'm not clear if I should buy one with or without ozone. Would prefer without only reason is not to have to deal with smell. I have a bad dust mite allergy and that's all I'm really concerned about. Should I buy one with or without ozone? Amazon sells both and which Amazon link should I choose so you can get credit? Thank you again for your video and advice.
Light can not access all places unlike ozone. With ozone it's better
Hey great video. And thanks for including the DON’Ts in it. As it is the don’ts which are more useful for your protection. i have roach problem in my friends house.
Anyways, i am planning to place this UVC bulb in his kitchen and bathroom. Like at night would leave them on and as roaches 🪳 spread germs at night so would it be beneficial or any other cautions???
I would not do that in my home as the build up of ozone would reach toxic levels if the bulb was left on for long.
@@Roos-Reviews thanks for the fast reply. But in that case if we use a Non Ozone uvc bulb ???
Yes the Ozone-free one would be safer, but unfortunately I can't advise you on its ability to help with the cockroach problem. I use these lights for mould.
@@Roos-Reviews yes of course, by roach problem i meant to say the bacteria left by the roaches. Not the roaches itself. Anyways thanks for sharing and again very informative video.
UVA and UVB are used on human skin to try to resolve cases of eczema and psoriasis but UVC isn't used suggesting it's too dangerous although it's shorter wavelength would mean less penetration into the skin than UVA and UVB.Humans aren't adapted to UVC as it all gets absorbed in the Stratosphere.The main one we encounter is UVA but some UVB gets down to the surface particularly in the Tropics .
I'm experiencing this eye pain right now. Its the third time. I thought it was something else that caused my eye, face, head and neck burns but nope! I wish i had seen this sooner! The pain is excruciating!!! And I can hardly keep my eyes open to type this out. I wish i had listened to people when they talk about how dangerous uvc lighting is. Only 2 minutes of exposure has me wishing i can scoop out my eyes to gain some sort of relief. Lubricating eye drops aren't helping at all this time around.
I sympathise with you. I've had 'arc eye' from welding and it was a very rough night.
PLEASE HELP! IS YOUR VISION DAMAGED? I DIDN'T FEEL PAIN BUT I THINK THE RESOLUTION OF MY VISION HAS DECREASED BY ABOUT 20%. I'M NOT SURE THOUGH. PLEASE ANSWER. I looked at my uvc lamp for 20 seconds
@@ashresearcher If you did this today you may have a problem waking up in the middle of the night tonight. Buddy im sorry but nothing is going to help you but the passing of time. Lubricating eye drops may help but dont use visene. To answer your question, yes my eye damage is permanent. Everything is a bit blurry now and i have a dead spot on my peripheral vision of my right eye. There's no more pain involved but the vision has diminished permanently.
@@ShroomDay0117 thanks for your reply. When did that happen to you? What were you exposed to? Sorry to hear about it. I hope it gets better or medical technology advances enough to help in the future. My exposure was 2 months ago. I never felt pain though.
@@ashresearcher I used the same light as depicted in this video. The last time was about a month ago and the first time was about 2 months ago. If you didnt experience any pain i would say your probably fine.
Buy a timer lamp base. You set it fo whatever time you want the lamp to operate hit delay start and get out.
Yes I have 3 of those. But I bought this one before UVC lamps were cool and all the timer versions went mainstream.
@@Roos-Reviews The main con I find with the simple timer versions without remote control is that you can't go to the room before the timer ends, you still have to wait for it to expire and that can be problematic if you forgot some important item like a phone or medicine or in case of emergency.
I don't have any timer UVC lamp by the way, but only E27 ones and I either put them in place of the standard lightbulb if I want to sterilize or deodorize an entire room or in a ordinary table or desk lamp if I want do treat individual items. And in that late case I use a remote control socket.
In either case I always put a warning sign on the door telling that there's a harmful UV lamp in operation inside the room and not to open the door and when I'm running it in lieu of the standard lightbulb, obviously the room light switch is controlling the germicidal lamp, so I also put a second warning sign telling not to try turning the light on like we're all used to, because it will hurt your eyes.
How long we need to open up the window and how long we need to wait until it's safe please 🙏
15-30 minutes
I've used a similar lamp and it left a smell in the room. It's been hours since we turned it off and aired it out, would you know if that smell is toxic/harmful to breathe?
If you watch the video I explain what that smell is.
Ozone
This light not only produces Ozone but it breaks tiny microbes and organisms amd even some materials into molecules. The lasting smell is probably that molecular level burnt smell. As for Ozon, the smell is strong but it doesn’t last. U don’t event have to vent it. Ozon is not stable breaks apart by itself within an hour or so turns back into standard O2
Every germicidal lamp on the market recommends to vent the room for 30-60 mins after using the lamp because it creates ozone, and it's harmful to breathe. Safest bet is to get a lamp with a wavelength between 240-280 nm, anything below 240 nm will create ozone. However, many UV bulbs will have fluctuating wavelength, so even if it's supposed to be above 240 nm, it still may drop below 240 and create ozone. A rule of thumb, always vent the room after using UV lamps.
@@twentytwo138 Is it really necessary to vent the room even if the lamp didn't produce any ozone ?
(I know it doesn't since ozone has its own distinctive bleachy smell and not all my germicidal lamps produce it).
Can the ozone these produce be harmful to plants?
I want to use this for cleaning a Gray water treatment plant. I am thinking of mounting a 30w UVC light bulb in the air above a water reservoir, 40x40cm (1.3x1.3ft). Will the light kill bacteria on the surface and down in the water? I'm not going to have the light inside a cylinder like many others use, just in the air above the surface of the water.
Sorry, I can't advise you on a use case like that. I'm not sure how deeply UVC at this intensity would penetrate water from above the surface or how effective that would be for water sanitisation.
Ok. Thanks for the answer.
So is the ozone one better for AC use or not?
Not
I got the ones from Coospider on Amazon. The 25 watt, 110 volts with the base. I'm wondering if this one emits UVC or if it's fake.
I'm not sure exactly which light you're talking about. Can you link me?
I'm using one right now, and I can confirm that it's producing a bunch of ozone, so I'm assuming it's working just fine on the UV-C front
UVC bulb This germicidal light can offer 30 times power ability of sunshine. It can work for bed, room space, object surface or any other places that you need to disinfect!
No Bad Ozone Smell:There's no Ozone Smell when germicidal lamp work.
Easy to install, Big irradiation area:Regular E26/E27 base. Very easy to install.
Hi, I'm looking for this topic because I grow plants inside my room. I have a pendant lamp with a single bulb, today I put one in it and after doing some research I found out that these lights are perfect for plant growth, so I thought it would be a good idea to buy a UV bulb and put it next to the others two normal bulbs but what I'm asking you now is…will it negatively affect me in any way? Cheers
Did you watch the video?
@@Roos-Reviews Yes, but I was so desperate to get an answer like "no, you'll be fine" I had a lot of plans with this bulb and having my plans fall apart doesn't sit well with me. I already realized that I will not be able to use that bulb, a shame really.
Being in the same room with the bulb on would cause skin, eye, lung and possibly mucous membrane damage. There are LED bulbs intended for growing plants and they are safe to be around and quite affordable too. Can you buy some of those instead? This UVC bulb is only intended for disinfecting use and not safe to be around when it's on
Uvc cannot damages things inside glass and or plastic bottles? Like wine, liquor and medicine?
In doubt don't risk it and remove all those items from the room before using the UVC lamp. Or at the very least put them in drawers or closets.
(Of course the same goes for plants or vegetables, pets, children and even valuables like paintings or silk clothes for example).
Can you link to a non ozone emitting germicidal lamp?
any UV-C CFL tube
@@soundspark Yes, that is correct. Bud those non ozone are hard to come by. But few products just pop up here
I read that ozone will be created if it's below 240 nm, so maybe try between 240-280 nm.. However it is said that UV bulbs can have fluctuating wavelengths, so even if the bulb is supposed to be above 240 nm, it still may drop below 240 nm
Hi can they kill mites or flies or bedbugs or mold ?
Thanks kindly
The light itself will kill small bugs if they are directly exposed to it for long enough and the light will also keep mold from growing on surfaces it shines on. The ozone gas produced by the light kills mold in the air where light doesn't reach. I've been using the same lamp in my basement (15 minutes per day) for 3 years to keep the mold away.
@@Roos-Reviews What about using mirrors or reflective surfaces to help the light reach more parts? Would that work?
That "sunburn" you got in your eyes from welding... it felt like sandpaper in your eyeballs didn't it? It happened to me once. I'd rather lose a finger than have that happen again.
It was extremely painful. I've injured my eyes several times in other ways too and I find eyes to be among the most painful body parts to injure.
Dark lens Welding glass can protect uvc light?
The glass in welding masks protect the eyes from UVC damage.
Do hospitals use UVC germicidal lighting and if not why?
Yes they use it to sterilise certain things.
They need to put a warning on all these lamps that really stands out, before someone plugs it in for the first time just to see if it works and they haven't read the instructions yet. I stared for a minute or two at mine, thank goodness mine has a motion detector on it and helped limit the exposure. I had no idea these things could hurt your eyes or skin. I looked at mine about an hour ago, as of right now my eyes feel fine. I'll update tomorrow. As for the smell, the place smells pretty bad at the moment and I'm airing it out. I'm sorry I bought this damn thing.
I agree about the warning, definitely. Not everyone thinks to research them before buying them. A lot of them do come with instructions that include a warning, but not all. The pain is something people never forget. It's quite something. I hope you did not experience it.
@@Roos-Reviews It's been 24 hours now and my eyes are fine. Even though I looked at that light from about two feet away for a combined exposure time of somewhere between 30 seconds and one minute I never got any pain. I was afraid when I woke up this morning there would be a delayed reaction but that never happened. I'm debating on whether or not I'm going to chuck this thing.
Hey 1 question, can UVB and UVA bulbs create ozone? For example 280 nm? I read somewhere that it needs to be below 240 nm to create ozone, is it true?
No, only cheapy chinese UVC aka germicidal bulbs will create ozone. UVA and UVB bulbs definitely can't !
Fyi, unfortunately the USA links don't work anymore. 🤔
Thanks for letting me know. And yes, I prefer the ozone producing variant of these bulbs for the reason you mentioned.
I would like to make this work at least 5 minutes in a fridge to kill air microbes which enter when opening the fridge. What do you think?
I don't think I would do it. UVC can cause plastics to release unpleasant gaseous compounds that might affect the food if done regularly. Plus you'd get a breath of Ozone every time you opened the door.
Need 30 minuets and several tries
I would like to purchase a bulb like that. I didn’t find the link. Could you provide the link or some information as to where I can buy that particular bulb.
Hi, there are some links in the description. I've copied them into a comment and pinned it under the video too.
Roo's Reviews thanks for everything. I have a handheld 35 watt GermAway unit that I bought from cureuv.com. It was quite an expensive purchase. I use it to pass over nearly everything that enters the front door. Groceries, lottery tickets, mail, receipts, currency, etc. I also made a foil lined disinfection box that I fit the lamp in the ceiling. I want to get another bulb to try to devise a unit that I can pass currency and other paper items through the open area between the lamp tubes using little rubber rollers. A unit that will disinfect both sides of the bills at the same time. I’ll see what I come up with. And once again, thanks for your help
I admire your effort to keep it clean, but if you start living a completely sterile life you won't build immunity, and then you may become sick as soon as you go out. You need to let some bacteria enter your body to build immunity. (not counting covid)
How far safety distance of 20watt uvc t8 non ozone lamp when operate?
There's no safe distance, you don't want to be exposed to UVC at all no matter how powerful the lamp is it will still be harmful to your skin and eyes.
Just close the door of the room where you have the lamp and turn it on and off remotely.
out of the room
I'm thinking.... put this in lamp, use extension cord, plug in from outside
I do the same.
Just us a timing-switch. On aliexpress they sell them combined with a remote.
@@kwekiejekie3820 Or even more high-tech than that, a RF remote control outlet.
That's what I use with my germicidal lamp so I don't have to worry about managing the power cord through the closed door of the room.
Hi! new subscriber here, why would you save you time from using the the helmet, in your video, if you would have bought the light that comes with the remote control ?.....
Because you can leave the room and then turn on the light remotely. That way there's no need to protect your skin and eyes.
Dude did it eliminate the musty smell in your basement?
Yeah it smells like an ocean breeze after I use it.
For how many minutes? And how many times?
Jake, did you end up buying it? I want to add a few to my crawlspace.
Thanks!
Roo i use a ozone generator to remove odors, purify the air & etc. It's will be much safer to operate.
Hi
Hello
Are these still sold to European countries now ?
Is it possible to have ultraviolet rays irradiated inside a box with fans pumping air into and out of the box?
Contaminated air is pumped into the box, sterilized by the UV rays, then pumped out of the box to the room where the box is located.
The advantage are:
1. people can safely be in the same room with the box without the risk of being exposed to harmful ultraviolet light.
2. you can use the air-conditioner normally without worrying about temperature or circulation of air.
3. you can safely be in the room without the risk of getting infected by COVID-19 or other airborne viruses.
The air inside the room is constantly sterilized by the box.
The box should be small, preferably portable.
Such a box does not sterilize surfaces, only the air inside a room. Surfaces should be sterilized normally with desinfectant and cloth.
Right now there is no way to safely sterilize the air inside a room. You have to open the windows to ensure good circulation of air. But during the winter and summer you need to close the windows and use the air-conditioner to have an ameniable temperature inside the room.
Most air-conditioners simply recirculate the existing air inside the room, instead of pumping clean air from outdoors.
If someone in the room is infected and shedding viruses into the air, the air gets more and more contaminated.
But a UV box that sterilizes the air while allowing the presence of people and the use of air-conditioner could be the solution.
There are air purifiers on the market which contain UVC bulbs which do not produce ozone and so are safe to use in occupied rooms. I have such a device. The bulb is inside, hidden from sight. I don't know how effective it is in real practice but they are available on Amazon.
@@Roos-Reviews Do you have links to those products?
@@Roos-Reviews Do you know how they manage to get air in and out of the device but not any light or UVC rays ?
I mean if I were to put a bulb inside a closed box and say drill some holes or put grills to let air pass, I'm sure it would also let some light out which is obviously not good.
If the box is inside another box and both boxes have holes but the holes are misaligned there would not be a problematic amount of light coming out, I guess. My air purifier has the bulb deep inside it. I can't see it from the outside and I can't see the light apart from a very faint glow when the room is dark.
@@Roos-Reviews Thank's for the reply... More than a year later 😂
I just got a developing tank for photographic film and its lid comes with a hole that allows liquids (But also air) to pass whilst keeping light out, otherwise it would ruin the film inside.
According to a video from Technology Connections it's because some sort of clever maze is molded inside the lid of the developing tank.
So I suppose now that air purifiers come with similar designs to allow air to pass through whilst keeping harmful UV-C rays inside.
Will this kill the fungus in my shoes ??
If you really have fungus growing in your shoes I would suggest getting new shoes. But yes, UVC can kill fungus if used correctly.
@@Roos-Reviews I let my uncle borrow my shoes n I don't wanna risk catching fungus so I'm thinking bout buying this lamp to clean , this lamp in like 20$ vs my Jordan's are 160
I would definitely choose Gal gadot saving me from the virus.
Tool Klean makes a great lamp and has NO ozone.
excuseme, what literature or research do you read to making this video
no offens but i really need to know.
Every webpage on internet about UV-C? It is technology used for decades.
You didn't have to make it so grim 😂
The ozone ones also will kill your houseplants and turn your bananas left on the counter black.
Harganya berapa
mahal ngab...
Dude, why are you talking as if you're going to tell us the mysteries of the universe? 😅
He’s talking sexy
How can we be sure the bulb is real UVC and not some painted scam bulb?
You will smell the Ozone it produces.
HELP! PLEASE SEE MY COMMENT TO SOMEONE ELSE BELOW. I'M REALLY WORRIED ABOUT LOSING VISION
🇵🇬🇵🇬
Hey you are not wearing enough protection for your body, you need to cover the skin fully, like wearing a non permeable leather or thick clothe, just wearing a t shirt is not enough, the light goes right past gaps in the weaving. This is how you get melanoma, which can very easily progress to cancer.
Yes it's dangerous indeed.
Get skin cancer Speedrun XD
only uva and uvb are dangerous, uv-c is not that agressive...just read studies
You have that confused. UVC is much more destructive to organic matter than UVA or UVB.
@@Roos-Reviews nop! Because UVA and UVB is so much stronger that ozone layer does not absorb 100% of UV-A and UV-B rays before they reach our surface... UV-C is different
The UVC bulb in my video will cause severe eye and skin damage if exposed for even just ten minutes. On the other hand, UVB and UVA bulbs are widely used for tanning and are much less damaging than UVC bulbs. Many tanning bulbs actually have UVC filters to block the UVC from reaching our skin because it is too dangerous. I don’t know why you are disputing this. It’s a very simple and widely understood science.
This UVC bulb will definitely burn human skin and eyes.
We are exposed to UVB and UVA every time we walk in the sun and we don’t become blind or suffer severe skin blistering every day. The Earth’s atmosphere blocks the majority of UVC from reaching us. If it did not block any UVC , we would all have to live underground otherwise we would die within a short time.
@@Roos-Reviews thats why uvb and uva was banned for people tanning in many places like here in Brazil...dont get me wrong, like...all 3 types are dangerous if use in skin or eyes
You said “only uva and uvb are dangerous”. That’s just not true. Anyway, have a good weekend.
I think this is a bit of an overreaction. Stupid government regulations. Don’t look directly at the sun, don’t look directly at this stupid thing. Get out of the room, for a while. Big deal.
Which part do you think is the overreaction?
@@Roos-Reviews he's trolling.
This is wrong. UV-C light cannot penetrate the upper layer of the epidermis (skin). It can barely do so in the upper range of the UV-C spectrum, but not to an extent that can cause skin damage.
"it is clear that the outermost layer of skin (i.e., the human stratum corneum) strongly attenuates UV-C radiation such that very little UV-C radiation reaches the germinative, basal layer of the epidermis, where the DNA would have to be altered to potentially initiate skin cancer (CIE, 2010; Barnard et al., 2020; Cadet, 2020; Forbes et al., 2020). it is clear that the outermost layer of skin (i.e., the human stratum corneum) strongly attenuates UV-C radiation such that very little UV-C radiation reaches the germinative, basal layer of the epidermis, where the DNA would have to be altered to potentially initiate skin cancer (CIE, 2010; Barnard et al., 2020; Cadet, 2020; Forbes et al., 2020)." (Blatchley et al., 2022) www.tandfonline.com/doi/full/10.1080/10643389.2022.2084315
UV-C can cause severe sunburn though !
And let's not talk about the wonderful flash burns it can cause to eyes !
You really don't want to be in the same room as a active UV-C germicidal bulb !
Personally I use a RF remote control to turn it on and off from outside the room where it is set to disinfect various things.
And no living thing stays in that room during that time.
Hello, Help Me Please there is a room where I wanted to disinfect the air in a room.
Without wanting it, I entered the room, I had forgotten the light on.
I just had the time to notice it and I went out quickly, I saw the lamp two or three seconds and I was exposed 5 seconds maximum at a distance of about one put,
I am panicked, should I expect serious consequences?
Sorry for my English,
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Bonjour, Aidez moi s' il vous plait voila, il y a une pièce ou j' ai voulu désinfecter l' air dans une piece.
Sans le vouloir, je suis rentré dans la pièce, j' avais oublié la lumiere allumée.
J' ai juste eu le temps de m' en apercevoir et je suis vite sorti, j' ai vu la lampe deux à trois secondes et j' ai été exposé 5 secondes maximum à une distance d' un mettre environ,
Je suis paniqué, est ce que je dois m' attendre à de graves conséquences ??
Désole pour mon anglais,