This is something I’ve heard a lot, and assuming it’s true, what’s the science behind it? Surely holes in masks are the same size no matter whether the germs are heading in or out, but I’m guessing it’s not about the holes and I’m missing something.
Obligatory disclaimer: I’m not an anti-masker, I’m still wearing it in shops for example. This is just me wanting to understand.
In: Biology
It’s very simple
Both you and another guy don’t wear pants: he pees on you and you get wet
Only you wear pants: he still pees on you, but you’re not as wet
Both of you wear pants: he only pees on himself, any droplets get caught on your pants and you don’t get wet
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