Quote:
Originally Posted by Leadbone1
(Post 1815668)
No masks are effective! Recently found out that my daughter-in-law who is a registered nurse tested positive for Covid and of course then so did my son, and his mother. none of them had any severe symptoms and only felt a slight fever for like less than a day. My daughter-in-law wore an N 95 mask at work. Found out that the Covid molecule is small enough that it will go through even an N 95 mask. The masks you see people wearing in grocery stores and Walmart and other places are absolutely useless. You cannot hide from a virus just like you can’t hide from the common cold or the flu. Sooner or later we’re all going to be exposed to this, but the good news is it’s 99% survivable. Most people that get it don’t even know they had it. I’ll let the geniuses out here figure out why this virus has been so weaponized by the media?
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The virus molecule is small enough to go through the mask. However, see the following from fact checks:
Theory: COVID 19 virus particle size is 125 nanometers (0.125 microns); the range is 0.06 microns to .14 microns,” the post said. “The N95 mask filters down to 0.3 microns. So, N95 masks block few, if any, virions (virus particles).”
In other words, the post asserts the virus is smaller than the filter on the N95 mask, so the N95 mask doesn’t work.
Facts: Experts say this claim flies in the face of numerous studies and reflects a failure to grasp fundamental principles of how viruses behave and how face masks work.
Virus particles don’t exist alone
The science of mask functionality gets really small, really fast. The unit of measurement here is microns — 1/1000th of a millimeter.
The size-based argument against N95 laid out in this claim assumes mask filtering works something like water flowing through a net — particles in the water smaller than the net opening pass through, while larger items don’t.
But the physics involved don’t work like that at all.
The COVID-19 particle is indeed around 0.1 microns in size, but it is always bonded to something larger.
The virus attaches to water droplets or aerosols (i.e. really small droplets) that are generated by breathing, talking, coughing, etc. These consist of water, mucus protein and other biological material and are all larger than 1 micron.
“Breathing and talking generate particles around 1 micron in size, which will be collected by N95 respirator filters with very high efficiency,” said Lisa Brosseau, a retired professor of environmental and occupational health sciences who spent her career researching respiratory protection.
