UVA & UVB have wavelengths greater than 300nm and are the typical party lights, nightclub stamp lights, etc.
VUV has wavelengths below 200nm and can produce ozone (which tends to destroy any living material). However, the ozone produced typically isn’t very strong - you’d want a dedicated ozone machine if that is your preferred method of sterilization, death, etc.
UVC is in the 200-300nm range. From 220-280nm is considered the effective range for UVC killing viruses, bacteria, germs (whatever those are) and other biological contaminants by altering their DNA. Depending on the strength of the light, it may take anywhere from a few seconds to minutes to destroy bacteria. Bacteria and viruses that are hidden from the light will not be affected. As soon as the light goes away, new bacteria and viruses may immediately colonize the area.
Most UVC light can be dangerous to people and animals, if you/they are directly exposed to the light. It can cause skin cancer and cataracts.
UVC will most likely kill the COVID-19 virus, but you typically don’t want to use it on yourself for the above reasons. However, you can use the UVC light to disinfect areas that you think may have been exposed to viruses.
There is a unique type of UVC light called “Far-UVC” which is around 222nm wavelength. This specific wavelength has shown promise to kill coronavirus but not be harmful to humans or animals. A lot of research is occurring in that arena now, and you may soon see that technology rolled out to manufacturers. It will be expensive at first, and will mostly go to hospitals and other first-responder facilities. Then you will see it being implemented in commercial buildings, such as WallyWorld or Costco.
Now if everyone will just wear their mask until we get vaccines and widely-implemented Far-UVC, we can get through this pandemic! Can’t afford a mask? Search youtube for “paper towel mask”, very cheap and very easy to make (takes me 3 minutes to make one), comfortable and safer than a basic surgeon mask.
@mrdancer Didn’t even Fauci say listen to science and ignore the Internet. Frankly the anecdotal information spread by “influencers” and followers of Dr Google have led to half the hysteria that seems to be the rule rather than the exception these days. Happy stories from the vaccine researchers bring them huge sums of money and that’s a fact and of course the news outlets can’t wait to gobble it up. When a truly viable vaccine capable of scaling production to serve entire populations is physically available give us a shout out. Otherwise you are dreaming and your little plan you have formulated in your head remains just that. That’s reality as of July 15.
@mrdancer so what you’re saying is we should find some sort of way to blast the infected from the inside with UVC and they will be all better? Is that possible? Let’s look into that. Maybe if we boil them…
For clarification, you don’t want anything living that you want to stay living to be anywhere near the UVC or VUV light (anything under 300nm wavelength) unless it has been specifically tested to be safe on people (e.g. - the Far-UV at 222nm).
All of these wavelengths come from the sun, also, but thankfully we have the ozone layer in the atmosphere (for now) to filter out most of those harmful wavelengths. If that ozone layer continues to deteriorate, expect quicker sunburns, more skin cancer and more cataracts.
Nothing political about it, unless you’re an idiot.
@mrdancer lol that was obvious /s I hope. Based on someone you have probably heard of.
As far as your farUV that’s an extremely narrow bandwidth and we all know how news media reports “a new scientific study says absolutely nothing because shit I made up in my head cause I want click bait not reporting”
Obviously we know the correct bandwidth of UV can kill things. If you believe there is one possible confined to a bandwidth that can potentially kill a specific virus but not harm other living things I would like to see that. If you are going to claim that in a forum you should site you sources and studies and published articles. And who has it in development. Etc
So, this being refurbished means it has already sucked up somebody else’s toxic debris, then attempted to sanitize it with UV that is really just a blue LED so it looks cool, then they put it in a box again and now we get to buy it for a price allegedly better than the HSN price.
OK I’m in.
(no, not sure yet, but maybe)
OH MY GOD THEY FOUND GLEN LOST BETWEEN THE COUCH CUSHIONS, ALONG WITH A FEW ELDERLY POTATO CHIPS, 83 CENTS IN CHANGE, INCLUDING A CANADIAN DIME, A 30-PIN IPOD SPEAKER DOCK, THIRTEEN POWER BANKS, A FIDGET SPINNER, THAT THING YOU BOUGHT FROM MEH BUT HAVE NO IDEA ANYMORE WHAT IT IS, AND A MYSTERIOUS STICK SUBSTANCE THAT WAS ONCE A CBD GUMMY BEAR!!!
@inanna@OnionSoup while this is usually true… If your SO had severe allergies. And it actually helped. And you were the one who was going to use it for their benefit… I doubt it’s pleasant to use if you have allergies since it’s stirring stuff up. Not just give it to them to use… You might be able to dodge the couch. Depending on your SO.
Granted I still wouldn’t call it the actual anniversary present lol.
Which doesn’t even look the same and is clearly a different brand but they somehow use raycop lite in their search terms. Not that I have ever heard of raycop lite either although I suppose it kinda indicates they are a knock off if they are trying to feed off their name.
@Deftoned989 unfortunately “everything” is made in China. And people believe junk science. But factories can have massively varied standards/production quality and some just knock off something to look the same but not function the same. UVC does have correct applications. But I’m not worried about sanitizing my tooth brush like some previous mehs lol.