19 Oct '20 14:35>
@metal-brain saidSo your hypothesis is that if you can see smioke coming through a mask it is clear that it won't block any Aerosol?
People with a political bias don't like to use common sense when it is needed. Here is an experiment to prove the common sense people are too dogmatic to accept until they see for themselves.
Find a friend who smokes cannabis or tobacco. Have your friend inhale smoke and quickly put on a cloth mask or any mask you want to test. Do this in a window with direct sunlight ...[text shortened]... ave him cough or sneeze. Film it with your phone.
Seeing is believing. Cloth masks are worthless.
I posit a new exoperiment blow smoke thorugh the mask multiple times and then report on what you see to from on the inside. take a White maks to improve the effect.