147
people found this helpful, as of 2023
ranked #211,672 most helpful
out of 571,544,897 reviews
★☆☆☆☆
Thin, probably useless.
I purchased these several months ago and had not used them till now. I thought they might help protect agains coronavirus, but these things are so thin and porous I can see through them. See my photo. How can they possibly be 4 layers? Now I’m in a pandemic with masks I don’t trust.
March 2020 · Industrial and Scientific · verified purchase