Short answer is, possibly, but there's not a lot of evidence for that with coronavirus or rhinovirus. Instead of being merely in the proximity, the person sprays you in the face with a cough or sneeze, where you feel the wetness, A), hope you're wearing glasses (or googles or a face shield) and B), you should probably wash your face soonest. The evidence seems to show (key word is seems) that when the droplets from the cough or sneeze that landed on your skin has enough mucous left behind that it acts like sort of a glue that keeps the virus where it landed, and by the time the mucous breaks down to where you might inhale the virus, it's either dead or in such a small quantity as to not matter.I have a serious question though. Let's say a person is wearing a m95 mask and is protected significantly from the virus. He walks into a room that has a covid positive person in it. The covid positive person coughs or sneezes in the proximity of the person wearing the mask. The droplets land on parts of his face, neck and forehead. Afterwards, the person leaves the room and takes off his mask. Could the droplets that landed on his face, neck, and forehead eventually be inhaled after they dry?
True. UV light will kill the virus. But the UV light won't penetrate deep into the mask material, so UV is only effective on the surface.i have heard the theory , if you expose the mask to sunlight , uv will break the virus down ?
True. UV light will kill the virus. But the UV light won't penetrate deep into the mask material, so UV is only effective on the surface.
Because of the pandemic and hospitals being short of masks, the CDC and others did extensive testing on how to disinfect N95 masks. UV light did horrible in the testing, because it only worked on the surface, and didn't work on the middle layers of material (the electrostatic layers). Microwave ovens were useless, even for the masks that didn't have a metal strip for pinching the hose bridge (the masks with the metal strip simply caught fire). Heating the mask to 160 degrees worked, but rendered the mask only able to filter at about 70 percent. Alcohol, bleach and other liquids caused the mask to be only about 50 percent effective. The only thing that worked and kept the mask's filtering ability above 90 percent was a hydrogen peroxide vapor chamber, which most hospitals don't even have.
For reusable and homemade masks, you could probably use UV light, but you can also just wash them, which is more effective, anyway.
So far (as far as I know), there has only been one such study, by Yale, which was published a couple of weeks ago. The answer, at least in the manner in which they did the tests, is YES. But they tested at 2 hours and at 80% humidity, and found the masks did not suffer any degradation in filtering or fit, and the ozone killed the bacteria tested (a bacteria that is harder to kill than coronavirus). It isn't yet known if that will translate to home ozone machines, such as CPAP cleaners.I wonder if putting them inside an ozone machine would disinfect them.
True dat.Missed the target, as usual. <snort>
Ok, one more Fauci being Fauci: