> we know the size of particle they filter and we know the viruses are bigger than that.
If we're talking cloth masks as most people are, the viruses are actually way smaller.
If we're talking cloth masks as most people are, the viruses are actually way smaller.
Test 1, spray from 2 feet. Of course the paper was soaked.
Test 2, a cloth mask placed on the paper. It gets damp, especially if left in place.
Test 3, a cloth mask over the spray bottle. The mask blocks almost all of the spray.
We did not bother with test 4 (2 masks) after the 3rd, but I think they understood the point.
We did retry 3 with a medical mask, with 0 spray through.