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
Imagine you and another kid in your preschool are facing each other. He needs a pee. If he pees and neither of you are wearing trousers, you get his pee on you. If you are wearing trousers but he isn’t, you get his pee on your trousers. If he’s wearing trousers it really doesn’t matter whether you are or not. He gets wet trousers. You walk away dry.
Pee is a cough. Trousers are the mask.
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