I mean surely it’s the same air going into their lungs regardless of the face mask? It’s not like an infectious disease spread by human contact where wearing a mask will reduce you getting the particles, it’s literally the air. So what’s really the point ?
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>It’s not like an infectious disease spread by human contact where wearing a mask will reduce you getting the particles, it’s literally the air.
No it’s…exactly the same.
Air pollution is a bunch of dangerous particles *in* the air but the O2 is still O2. Some of them are big enough to be stopped by a mask some aren’t. Smoke and most kinds of vehicle exhaust would be stopped pretty well by a N95 mask.
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