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.
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.