I work with real, lab tested, medical grade UV-C devices. The way a lot of these videos are made seem to exaggerate the actual risks and dangers of UV-C light. Comments also show that not many people understand this technology. To make it short, UV-C devices are fine if they do not expose direct light or direct contact to your skin. Reflective light is fine, it gets exponentially less dangerous the further away it is from the source. Not to encourage this behavior, but just FYI I have 'briefly' looked directly at the UV-C lamps, not up close, many times and it's been fine. The way these warnings are written make it seem as if you peak at it for a second, your eyeballs would burn to ashes. Keep in mind all those warnings seem very scary but nearly any manual of devices will have statements that seem extremely scary but they're just required to say it even if the chances/risks are near 0% to cover liability issues. Absolutely should take precautions and risks are risks but keep in mind even a microwave that one might use everyday can sound just as scary as a UV-C device. Make sure to get a device that has been lab tested and proven to kill germs and has safety features such as if you open it, lamp should never turn on while it's open and the source/lamp should never be exposed while in use. As long as it's in a well made enclosure, you should be fine. Now to test if it's a real UV-C lamp, you can get a UV meter that specifically tests for UV strength. If it's in 253nm range then it is legit. Lamps that have no enclosures are either fakes or are dangerous and so I wouldn't even get one of those 'UVC wands' if your goal is to kill germs. Devices you are purchasing for use should not require you to wear any PPE, unless you are working on troubleshooting it or something which is not recommended unless you really know what you're doing.
INGREDIENTS 1 16-ounce (450 g) loaf of Italian bread or French bread 1/2 cup (1 stick, 112 g) unsalted butter, softened 2 large cloves garlic, smashed and minced 1 heaping tablespoon of freshly chopped parsley 1/4 cup (25 g) freshly grated Parmesan cheese (optional)Preheat oven to 350°F. 1 Preheat oven to 350°F. Make the butter, garlic, parsley mixture as above. 2 Prepare the garlic bread: Cut the loaf in half, horizontally. Mix the butter, garlic, and parsley together in a small bowl. Spread butter mixture over the the two bread halves.3 Heat in oven for 10 min: Place on a sturdy baking pan (one that can handle high temperatures, not a cookie sheet) and heat in a 350°F (175°C) oven for 10 minutes. 4 Sprinkle with Parmesan (optional) and broil: Remove pan from oven. Sprinkle Parmesan cheese over bread if you want. Return to oven on the highest rack. Broil on high heat for 2-3 minutes until the edges of the bread begin to toast and the cheese (if you are using cheese) bubbles. Watch very carefully while broiling. The bread can easily go from un-toasted to burnt. 5 Slice: Remove from oven, let cool a minute. Remove from pan and use a bread knife to cut into 1-inch thick slices. Serve immediately. Enjoy the garlic bread 🍞😋
Last week my wife read about a lady in LA that got back from work to her furnished apartment to find what looked like a cool desk lamp placed by the landlord. She turned the lamp on and began working. After 20 minutes her eyes became really irritated and she couldn't open them anymore. She was taken to the ER on excruciating pain. The nurse had to anesthecise her to be able to open her eye lids. They asked about UVC light exposure and that's when she mentioned the "desk lamp". She seems to be recovering well now but don't know yet if there will be any long term damage.
Good article. I wish more people would take note of it. We got a box style one from a company called The UV Works, which has data that backed up their product in line with what is here. Since it contains all of the UV it should be much safer and effective.
I plan to use a UVC lamp for my enclosed room to disinfect as I work in the hospital setting that its also in the Hospital's employee wing. The UVC Lamp emits ozone which for me benefits me as I am hyper allergic and hypersensitive to air changes. I vent the room for a good 30 minutes before entering and question whether that's enough or should I wear a PPE first that is for UVC exposure. Or should I just aerate the room for longer?
A movement-detector accessory that immediately switches off the power or the mains electricity supply would be an obvious solution for most of the human/pet exposure problems. There are obviously many motion detector devices out there that switch things on - but what about any that switch things off? Anything on Amazon at all? Paul G
the only uvc lamps that work are flourecent bulbs. alot of these "disinfectant lights" dont work as they use led diodes. currently we do not have uv led diodes that emit enough light to disinfect surfaces or be photosynthetic to plants.
It is good thing that most of those hand wands does not have UV- C dioeds. Bcs they are not cheap. So usually there are some of those "party" UV diodes.. no no damage will come.. but also no bacteria/virus killing
Please be very aware that reflected UV light from shiny surfaces can damage skin and eyes. Classic example welders working inside round stainless steel tanks wear protection covering the back of the neck.
Yes! Correct. We tested this. UV-C can be reflected by polished stainless steel, chrome and even white shiny paper. Interestingly enough, it is not reflected by mirrors due to the glass.
So if someone wanted to sanitize a whole room with uvc light perhaps by using a ceiling light would it be safe for them to do it if they could turn the light on remotely when outside of the room with the door closed? Also what's the name of that lunch box looking sanitizer towards the end of the video and is it a good one to use?
Also, UVC cannot penetrate trough glass. So, you can look an UVC lamp trough a window without fearing an eye damage (you can still see the visible bluish color which is also emitted by the bulb).
260 nm to 270 nm is the kill range for viruses 265 at 30mm will kill in 030 seconds but that is a LONG way from several feet needed to clean surfaces in an area. The good news is increasing the exposure time WILL get it all. HOWEVER. UVC light does not BEND, so you are talking about air, major surfaces etc. I suspect a 360 plan would include bleach foggers, uvc 260 to 270 (with sufficient power) and room temperature manipulation like they do in hotels for bed bug infestations which are more common than you think.
I use an ozone generator in my house. It's in-line with the air intake of my HVAC thus my air handler pulls the ozone into the system and spreads it throughout the house through the ducting. I've been doing this for decades. How do I know if I'm causing damage?
Breathing ozone is dangerous. No human or pet can be in your home while the ozone generator is running and, after it is turned off, before your home is properly ventilated.
I was thinking about doing the same thing - but just putting the lamp in my basement where my HVAC is located. I guess I should turn HVAC system off while light activated and then wait for another while for ozone to disperse(?).
Wait a second here, a quartz halogen emits ultra violet light, when it does not have a glass cover on it! Those 500W halogen tubes produce UV light if they don't have a glass front on the fixture. Don't believe me sit in front of a 500W halogen light fixture with the glass cover missing for an hour, you will get a sunburn. I had to edit this to include, "Do not look too long at such a light bulb, it can cause eye damage!"
using UVC machine to sterilize C pap machine. Manual says it is good on all surfaces. My constant pressure air machine uses tubing how do I make sure the tubing THE inside is sterilized.
@@kkara2683 All UV light is harmful to humans, and most UV light is invisible to humans as well. UVA is less harmful than UVC, but it is still harmful, and I would recommend not looking at a black light either for extended periods of time. A black light has some other light colors added to it, with how the bulb is made, so it makes the UVA light visible to us, and is what causes certain items to fluoresce, like white clothes. UVA isn’t as effective at killing microbes as UVC is. The only way to know for sure which it is, is to read what the packaging says and buy bulbs from reputable producers, like Philips or some other large American or European company. If you have a spectrometer you can directly measure what the wavelengths are of the light you are looking.
There’s a ozone/UV light in my 1963 RCA Whirlpool dryer and still works all these years and definitely sanitizes things so I am good. Won’t need to buy any of these UVC/UV/Ozone lights off of the internet anytime soon :)
@@ultravioletbeamscompany maybe, bur from my experience, clothes get more wear and tear just by wearing them and going outside. Some people think clothes fade from washing in warm or hot water or certain brands of detergents, but clothes fade made from wearing them outside more than anything.
I’m no scientist, but wouldn’t using “far UVC” make it so that the only things that don’t die are those few stronger things? If that’s the case then wouldn’t they evolve to ALL be that strong?
I don't think anything can fully evolve resistance against certain things. This is usually the case for natural disinfectants i.e. peroxide, alcohols, iodine ...etc. These things can kill MRSA and other antibiotic-resistant microbes.They might develop mild resistance but when overwhelmed, it's still effective. I have a feeling it would be the same for UV light.
Sort of! You just explained antibiotic resistant strains of bacteria, but using UV light instead. If there is less competition for bacteria because the ones that couldn't withstand the UV are dead, then the ones that can withstand the UV light have an easier time reproducing. The more generations a bacteria has, the more possible mutations and possible resistances. There was a study a while ago with a Petri dish that at one end had zero antibiotics in it and it gradually got to the point of something ridiculous like a thousand times the amount of antibiotics it should take to kill the bacteria that it started with. They did a time lapse video of it showing that it would grow until it reached the first border of antibiotics and then start to die off, but eventually there was some that would grow into the antibiotic area. That would then grow and fill that whole area and it would start again. It got to the point where it was growing in antibiotics that the original strand had no chance of growing in. It would be very unlikely for the bacteria to eventually grow into that 1000 times antibiotic area if it was right up against the zero antibiotic area because of how harsh of a difference that is, but because it was gradual, they were able to slowly evolve to the point of having antibiotics basically be ineffective on it. Taking that same idea, if you were to drastically increase the amount of UVC light that bacteria sees, it will likely kill nearly everything from the start, but if it was a gradual increase over time, they would be more likely to develop resistances. After antibiotic resistant strands were realized, there was a decrease in antibiotics soaps to try and make it so that average bacteria wouldn't start becoming resistant to antibiotics, just like you were talking about.
Disappointed that you didn't mention a UV meter or dosimeter cards. Also, you definition of UVC does not match what Wikipedia says (Wikipedia says it is 100-280 nm not 200-280 nm).
Tell me first and then to you, I have a second proposal, on another topic, I would like to put it here, please, and it is: Hold on to your good purity, that is, the one that does not contain any transgression or harm to anyone, always, and do not contradict it, and remember from your childhood days what was fun. Fun is good and pure, and arrange for more other theories, even if you are alone, then you achieve intention, even if it is something resembling imagination. Focus your gaze only a little, for a certain period, with pure, good intent
Who wants to wave a UVC lamp around or hold a UVC meter while it and anyone nearby gets hit by UVC? Not me. I want the lamp to come on via a timer, or be turned on from outside of the room. I also don't want to have time the process. I want to blast the room, and then walk into a UVC free room and check the pieces of card or paper that I stuck on every surface to see what color they are, and move the lamp to different place, direction, and/or power, and blast the room again, perhaps for a bit longer or for a shorter time, and keep doing this until every part of the room that I want "cooked" is cooked, and verifiably so. I guess I might want to turn of the lamp and move the card slightly to avoid a UVC shadow that creates a sort of Achilles heel. Perhaps there's no need for special dosimetric cards if that's the right term. Maybe one could use unripe fruit instead? Or perhaps pieces of ordinary colored paper or cloth or tape or stickers that happen to be strongly bleached by UVC in the amount that sterilizes a surface without damaging it. By the way, beware of accidentally bleaching exposed parts of clothes or furniture and other stuff. If sunlight can do it, I think UVC lamp could. Does anyone know whether UVC lamps bleach cloth, book covers et cetera?
I specifically want a directional LED bulb to decontaminate a dug well on my property. Watching this I find it appalling that so many people are afraid of a cold that they will bombard themselfs with light that could cause burns, eye damage, and cancer.
This is wrong, it’s not the whole picture. First is proper wave length, 253.7nm is common and effective. Next is nJ output, which you can understand as heat which needs to be at least 22,000nJ and then it’s about duration of exposure which really needs to be greater than 1 second or the longer the more effective. Wavelength x intensity x duration is the correct formula or 253.7nm x >22,000nj x > 1s Is what is required to kill covid-19. No hand wand accomplishes this. Hand wands are a scam.
I know someone who works at a microbiology lab so I’m going to conduct my own effectiveness test with these UV-C sanitizer wands. I think they would be good to use in the car to sanitize your mask, keys and phone after an outing. Thank you for confirmation of the correct wavelength and intensity necessary for disinfection. I am interested in disinfecting not only for Covid, but also MRSA. A good friend of mine had to stay in the hospital for extensive antibiotic therapy because of it. I need to be careful with my interactions with her…extra sanitary and disinfection protocols.
I work with real, lab tested, medical grade UV-C devices. The way a lot of these videos are made seem to exaggerate the actual risks and dangers of UV-C light. Comments also show that not many people understand this technology. To make it short, UV-C devices are fine if they do not expose direct light or direct contact to your skin. Reflective light is fine, it gets exponentially less dangerous the further away it is from the source. Not to encourage this behavior, but just FYI I have 'briefly' looked directly at the UV-C lamps, not up close, many times and it's been fine. The way these warnings are written make it seem as if you peak at it for a second, your eyeballs would burn to ashes. Keep in mind all those warnings seem very scary but nearly any manual of devices will have statements that seem extremely scary but they're just required to say it even if the chances/risks are near 0% to cover liability issues. Absolutely should take precautions and risks are risks but keep in mind even a microwave that one might use everyday can sound just as scary as a UV-C device. Make sure to get a device that has been lab tested and proven to kill germs and has safety features such as if you open it, lamp should never turn on while it's open and the source/lamp should never be exposed while in use. As long as it's in a well made enclosure, you should be fine. Now to test if it's a real UV-C lamp, you can get a UV meter that specifically tests for UV strength. If it's in 253nm range then it is legit. Lamps that have no enclosures are either fakes or are dangerous and so I wouldn't even get one of those 'UVC wands' if your goal is to kill germs. Devices you are purchasing for use should not require you to wear any PPE, unless you are working on troubleshooting it or something which is not recommended unless you really know what you're doing.
Thanks for sharing this!
Thank you
It's fine. Average person isn't smart enough and they'll hurt themselves.
Hi, if you could recommend a FAR-UVC strip for research purposes do you have a shop or brand in mind?
@@danadel9840 I'm using osram 11w tube with Philips choke. The tube gives uvc at 254 nm. Philips tube is also fine
INGREDIENTS
1 16-ounce (450 g) loaf of Italian bread or French bread
1/2 cup (1 stick, 112 g) unsalted butter, softened
2 large cloves garlic, smashed and minced
1 heaping tablespoon of freshly chopped parsley
1/4 cup (25 g) freshly grated Parmesan cheese (optional)Preheat oven to 350°F.
1 Preheat oven to 350°F. Make the butter, garlic, parsley mixture as above.
2 Prepare the garlic bread: Cut the loaf in half, horizontally. Mix the butter, garlic, and parsley together in a small bowl. Spread butter mixture over the the two bread halves.3 Heat in oven for 10 min: Place on a sturdy baking pan (one that can handle high temperatures, not a cookie sheet) and heat in a 350°F (175°C) oven for 10 minutes.
4 Sprinkle with Parmesan (optional) and broil: Remove pan from oven. Sprinkle Parmesan cheese over bread if you want. Return to oven on the highest rack.
Broil on high heat for 2-3 minutes until the edges of the bread begin to toast and the cheese (if you are using cheese) bubbles. Watch very carefully while broiling. The bread can easily go from un-toasted to burnt.
5 Slice: Remove from oven, let cool a minute. Remove from pan and use a bread knife to cut into 1-inch thick slices. Serve immediately.
Enjoy the garlic bread 🍞😋
Garlic bread recipe?
I love garlic bread.
Thanks
MVP thanks
Nah, I'll stick to washing my hands, wearing a mask, staying fit, eat healthy, and avoid groups
I’m with you, but Some people don’t have that choice due to work.
Wonder if it would work effectively with PPE?
wow nice to see such a comment these days
XPERIAnce sounds like a good plan
Nah I'm good
Oh no! I looked at the UVC in this video 😧
Lmao hope the cameras are immune
Nice try.
Hahaha I just need a video of the light and play it in the room to disinfect then!
Last week my wife read about a lady in LA that got back from work to her furnished apartment to find what looked like a cool desk lamp placed by the landlord. She turned the lamp on and began working. After 20 minutes her eyes became really irritated and she couldn't open them anymore. She was taken to the ER on excruciating pain. The nurse had to anesthecise her to be able to open her eye lids. They asked about UVC light exposure and that's when she mentioned the "desk lamp". She seems to be recovering well now but don't know yet if there will be any long term damage.
yes thats why many home use uvc product nowadays have motion sensors to prevent direct contact
That’s same thing happening to me
I’m also felling so bad pain and eyes become red
UVC damages the DNA and only hurt when it's too late, so I'm sorry for the lady.
UVC causes Ozone built up which caused eye irritation
Well she is from LA.. (CA) most likely she has all of her boosters too.. 🐑🐑 so what do you expect. 😂
this is very informative
Fac
Thank you. And, a uvc lamp ad comes right after finishing this video.
Good article. I wish more people would take note of it. We got a box style one from a company called The UV Works, which has data that backed up their product in line with what is here. Since it contains all of the UV it should be much safer and effective.
I plan to use a UVC lamp for my enclosed room to disinfect as I work in the hospital setting that its also in the Hospital's employee wing. The UVC Lamp emits ozone which for me benefits me as I am hyper allergic and hypersensitive to air changes. I vent the room for a good 30 minutes before entering and question whether that's enough or should I wear a PPE first that is for UVC exposure. Or should I just aerate the room for longer?
A movement-detector accessory that immediately switches off the power or the mains electricity supply would be an obvious solution for most of the human/pet exposure problems. There are obviously many motion detector devices out there that switch things on - but what about any that switch things off? Anything on Amazon at all?
Paul G
the only uvc lamps that work are flourecent bulbs. alot of these "disinfectant lights" dont work as they use led diodes. currently we do not have uv led diodes that emit enough light to disinfect surfaces or be photosynthetic to plants.
UV-C diodes works too but they are not cheap.. so usually they are not used and most of LED UV-C products are fake
why and sources?
It is good thing that most of those hand wands does not have UV- C dioeds. Bcs they are not cheap. So usually there are some of those "party" UV diodes.. no no damage will come.. but also no bacteria/virus killing
Please be very aware that reflected UV light from shiny surfaces can damage skin and eyes.
Classic example welders working inside round stainless steel tanks wear protection covering the back of the neck.
Yes! Correct. We tested this. UV-C can be reflected by polished stainless steel, chrome and even white shiny paper. Interestingly enough, it is not reflected by mirrors due to the glass.
So if someone wanted to sanitize a whole room with uvc light perhaps by using a ceiling light would it be safe for them to do it if they could turn the light on remotely when outside of the room with the door closed? Also what's the name of that lunch box looking sanitizer towards the end of the video and is it a good one to use?
yup. It also would need a automatic lock so nobody would accidentally go into that room when it's on but it's up to the user.
@@TechnologyGeek862 ok that's what I thought thanks:)
The lunch box style is Chinese junk using non-effective clone UV-C LEDs
one of the UVC lamps I found has a remote control.
??? When looking at a UV light through a camera what wavelengths does the screen display it at.???
It will be within the range of visible light only ie ≥600nm (approx). Screens don't emit UV spectrum....
@@adityachandra1 glad to hear & thanks for the reply. I always wondered.
@@irri3191 Thats why the lights look choppy
Also, UVC cannot penetrate trough glass.
So, you can look an UVC lamp trough a window without fearing an eye damage (you can still see the visible bluish color which is also emitted by the bulb).
2:26 does anybody knew the type and brand of this handheld sterilizer please??? I wanna know..
IS consumer reports are essential. FDA Approved FTC and FCC approvals were at least trying to save human lives.
how is it that far uvc light cannot really penetrate skin but in you go down a couple NM to xray they can penetrate pretty much anything
Columbia University has been doing research on 222nm for years.
Thanks a lot, this is pretty helpful
260 nm to 270 nm is the kill range for viruses 265 at 30mm will kill in 030 seconds but that is a LONG way from several feet needed to clean surfaces in an area. The good news is increasing the exposure time WILL get it all. HOWEVER. UVC light does not BEND, so you are talking about air, major surfaces etc. I suspect a 360 plan would include bleach foggers, uvc 260 to 270 (with sufficient power) and room temperature manipulation like they do in hotels for bed bug infestations which are more common than you think.
I use an ozone generator in my house. It's in-line with the air intake of my HVAC thus my air handler pulls the ozone into the system and spreads it throughout the house through the ducting. I've been doing this for decades. How do I know if I'm causing damage?
Breathing ozone is dangerous. No human or pet can be in your home while the ozone generator is running and, after it is turned off, before your home is properly ventilated.
You’ll know in another four years.
I was thinking about doing the same thing - but just putting the lamp in my basement where my HVAC is located. I guess I should turn HVAC system off while light activated and then wait for another while for ozone to disperse(?).
If anyone is intetested, UVD Robots are the best commercial UVC devices on the market
Good job, we're useful information.Keep producing those videos
Wait a second here, a quartz halogen emits ultra violet light, when it does not have a glass cover on it! Those 500W halogen tubes produce UV light if they don't have a glass front on the fixture. Don't believe me sit in front of a 500W halogen light fixture with the glass cover missing for an hour, you will get a sunburn. I had to edit this to include, "Do not look too long at such a light bulb, it can cause eye damage!"
It is the mercury vapor that creates the UV-C.
using UVC machine to sterilize C pap machine. Manual says it is good on all surfaces. My constant pressure air machine uses tubing how do I make sure the tubing THE inside is sterilized.
Most stuff on the market is 280nm or above.
This is great info
Do your research????? This WAS our research. C’mon man!
Lol, legit XD
😂
I'm curious if you could provide any information about this device?
Airstream UV Air purifier 210 - High intensity UVC / UVV lamp
Hey this is the guy that cheated on the zoom call
Order Lumivyx Halo CleanUv do anyone know about them
That was very informative video thanks
Can UVc kill fungus ??
What is the difference between UV-black light and UVc
A black light is a lightbulb that emits UV-A light, which is less energetic and has a higher wavelength. It isn’t as dangerous to life as UV-C is.
@@Lemonz1989 what about eyes? and how can i know which one is it
@@kkara2683 All UV light is harmful to humans, and most UV light is invisible to humans as well. UVA is less harmful than UVC, but it is still harmful, and I would recommend not looking at a black light either for extended periods of time. A black light has some other light colors added to it, with how the bulb is made, so it makes the UVA light visible to us, and is what causes certain items to fluoresce, like white clothes.
UVA isn’t as effective at killing microbes as UVC is.
The only way to know for sure which it is, is to read what the packaging says and buy bulbs from reputable producers, like Philips or some other large American or European company.
If you have a spectrometer you can directly measure what the wavelengths are of the light you are looking.
There’s a ozone/UV light in my 1963 RCA Whirlpool dryer and still works all these years and definitely sanitizes things so I am good. Won’t need to buy any of these UVC/UV/Ozone lights off of the internet anytime soon :)
i had never heard of those. Brilliant idea! The only problem is if you use it for some synthetic fabrics that are affected but UV-C.
@@ultravioletbeamscompany maybe, bur from my experience, clothes get more wear and tear just by wearing them and going outside. Some people think clothes fade from washing in warm or hot water or certain brands of detergents, but clothes fade made from wearing them outside more than anything.
I’m no scientist, but wouldn’t using “far UVC” make it so that the only things that don’t die are those few stronger things?
If that’s the case then wouldn’t they evolve to ALL be that strong?
I don't think anything can fully evolve resistance against certain things. This is usually the case for natural disinfectants i.e. peroxide, alcohols, iodine ...etc. These things can kill MRSA and other antibiotic-resistant microbes.They might develop mild resistance but when overwhelmed, it's still effective. I have a feeling it would be the same for UV light.
Sort of! You just explained antibiotic resistant strains of bacteria, but using UV light instead. If there is less competition for bacteria because the ones that couldn't withstand the UV are dead, then the ones that can withstand the UV light have an easier time reproducing. The more generations a bacteria has, the more possible mutations and possible resistances.
There was a study a while ago with a Petri dish that at one end had zero antibiotics in it and it gradually got to the point of something ridiculous like a thousand times the amount of antibiotics it should take to kill the bacteria that it started with. They did a time lapse video of it showing that it would grow until it reached the first border of antibiotics and then start to die off, but eventually there was some that would grow into the antibiotic area. That would then grow and fill that whole area and it would start again. It got to the point where it was growing in antibiotics that the original strand had no chance of growing in. It would be very unlikely for the bacteria to eventually grow into that 1000 times antibiotic area if it was right up against the zero antibiotic area because of how harsh of a difference that is, but because it was gradual, they were able to slowly evolve to the point of having antibiotics basically be ineffective on it.
Taking that same idea, if you were to drastically increase the amount of UVC light that bacteria sees, it will likely kill nearly everything from the start, but if it was a gradual increase over time, they would be more likely to develop resistances.
After antibiotic resistant strands were realized, there was a decrease in antibiotics soaps to try and make it so that average bacteria wouldn't start becoming resistant to antibiotics, just like you were talking about.
Do LEDs produce UVC Light ?
Disappointed that you didn't mention a UV meter or dosimeter cards. Also, you definition of UVC does not match what Wikipedia says (Wikipedia says it is 100-280 nm not 200-280 nm).
Keyshawn Stravenue
Great video 👍
I bought Xiaomi Five, and I can be away from the room I disinfect, but when I get back, it smells uncomfortable 🤔
It's probably ozone.
Tell me first and then to you, I have a second proposal, on another topic, I would like to put it here, please, and it is: Hold on to your good purity, that is, the one that does not contain any transgression or harm to anyone, always, and do not contradict it, and remember from your childhood days what was fun. Fun is good and pure, and arrange for more other theories, even if you are alone, then you achieve intention, even if it is something resembling imagination. Focus your gaze only a little, for a certain period, with pure, good intent
1150 Jaquelin Fork
Jacobson Road
Daugherty Crescent
So, how to know if a UVC device will be safe and effective? Which device makes the most sense? This video gave no answers....
can you make a video of UVC inflight treatement of Honeywell company !!
What is the standard ppe to wear when operating the machine !!!
Hermiston Vista
a ton of fakes on Amazon. I have a UVC tester to make sure the light is real and at the correct wavelength.
Estevan Green
Who wants to wave a UVC lamp around or hold a UVC meter while it and anyone nearby gets hit by UVC? Not me. I want the lamp to come on via a timer, or be turned on from outside of the room. I also don't want to have time the process. I want to blast the room, and then walk into a UVC free room and check the pieces of card or paper that I stuck on every surface to see what color they are, and move the lamp to different place, direction, and/or power, and blast the room again, perhaps for a bit longer or for a shorter time, and keep doing this until every part of the room that I want "cooked" is cooked, and verifiably so.
I guess I might want to turn of the lamp and move the card slightly to avoid a UVC shadow that creates a sort of Achilles heel.
Perhaps there's no need for special dosimetric cards if that's the right term. Maybe one could use unripe fruit instead? Or perhaps pieces of ordinary colored paper or cloth or tape or stickers that happen to be strongly bleached by UVC in the amount that sterilizes a surface without damaging it.
By the way, beware of accidentally bleaching exposed parts of clothes or furniture and other stuff. If sunlight can do it, I think UVC lamp could. Does anyone know whether UVC lamps bleach cloth, book covers et cetera?
Thanks to Big Clive RUclips channel for the unripe fruit in UVC idea.
QuantaDose is a quick and easy UVC light test
Marietta Center
073 Bartell Port
795 Vilma Cliff
UVC Cool
Claudie Route
I specifically want a directional LED bulb to decontaminate a dug well on my property. Watching this I find it appalling that so many people are afraid of a cold that they will bombard themselfs with light that could cause burns, eye damage, and cancer.
Shields Hill
Riley Dam
Sodium Hyperchlorite breaks down to salt water in about 20 sec.
Oberbrunner Stravenue
Deontae Ranch
Bonnie Green
Boyer Lights
Barion Sweep
Thomas Paul Martinez Timothy Thompson Timothy
Judy Ferry
You can just use alcohol?
Hayes Mountain
Johnston Landing
Kaden Harbor
Hand Circle
does UV light create harmful ozone
Lacy Brooks
Romaguera Knolls
Ellsworth Well
Wilson Crescent
This is wrong, it’s not the whole picture.
First is proper wave length, 253.7nm is common and effective. Next is nJ output, which you can understand as heat which needs to be at least 22,000nJ and then it’s about duration of exposure which really needs to be greater than 1 second or the longer the more effective.
Wavelength x intensity x duration is the correct formula or
253.7nm x >22,000nj x > 1s
Is what is required to kill covid-19.
No hand wand accomplishes this. Hand wands are a scam.
I know someone who works at a microbiology lab so I’m going to conduct my own effectiveness test with these UV-C sanitizer wands. I think they would be good to use in the car to sanitize your mask, keys and phone after an outing. Thank you for confirmation of the correct wavelength and intensity necessary for disinfection. I am interested in disinfecting not only for Covid, but also MRSA. A good friend of mine had to stay in the hospital for extensive antibiotic therapy because of it. I need to be careful with my interactions with her…extra sanitary and disinfection protocols.
West Locks
Esther Corners
Good morning and friend
That sentence does not make sense
Martin Jose Martin Edward Lewis Elizabeth
Deshawn Cliffs
George Falls
Interesting
What if I eat some uvc? Would it cure the Rona?
Yass it will kill the rona, along with ur body....
Micaela Island
Bauch Corners
Ullrich Light
Schaefer Wall
Hermiston Mission
Bart Lodge
Schmidt Port
Rosie Light
Effie Locks
Shany Brooks
5209 Denesik Ridges
Hintz Cove