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
The best analogy I found was imagine you have a penis and you’re pissing yourself.
If you don’t have pants on. Other people near you will get wet regardless of whether they have pants on of not
If you do have pants on only you will get wet
Germs/cold viruses usually spread through tiny water particles that humans breathe out all the time and a decent mask stops them
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