[numberonepal]

...plus masks aren’t sealed so the air flow is all over the place.

That's the dirty little secret - super jetting.

[little jeremiah]

I saw a short twtter video a while ago showing a guy in cold air with a mask on, and the condensation from his breath was visible on all sides of the mask, pouring out. Then he added another mask on top of it, same thing. He might have even added a third mask, can’t remember.
Just poured out.

Masks only keep in or out globs of hacked stuff. Don’t protect from or keep in anything else than globs.