This really does show the insanity of the whole thing. I doubt any of
these things would even filter out sawdust and we are expecting it to
stop a virus that is 0.15 microns. If you are worried about sunburn on
your nose it might be a thing but otherwise, it is only handy for
criminals.
Obviously, you still don't understand the purpose of wearing a mask.
It is *not* to filter a 0.15 micron virus. A standard HEPA filter
won't even do that.
The purpose of wearing a mask is to reduce the "spread" of
droplets from a cough or sneeze to reduce the chances of others
becoming infected.
The flaw is the "droplets" are very small too or they would not hang
in the air. There is no reason to believe a bandanna would stop them.
In fact it could actually collect them while you are breathing and be
the chamber of the gun when you sneeze.
I have an experiment I am thinking of doing. Take a couple layers of T
shirt. Mist some red food coloring on one side enough to simulate
breathing through it during an hour of shopping. Then pop a balloon
held against that side, simulating a sneeze and see how far the red
spray goes through the other side.
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