If you wear underwear then you have to layers of cloth over it anyway. Cloth mask.
"Thats why 3 or more masks are better!"
I asked an expert, and he said 14-15 masks were the most efficient. He put the number at about 14.88 masks.
> If you wear underwear then you have to layers of cloth over it anyway. Cloth mask.
"*Thats why 3 or more masks are better!*"
I asked an expert, and he said 14-15 masks were the most efficient.
He put the number at about 14.88 masks.
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