let us put breath masks in every kind of face covering

[Berrik]

Except fake moustaches, gas masks and medical masks and so forth of course. There's a lot of cool face-covering things that no one ever wears because you can't also wear internals with them. Free fashion!

If it's annoying your inner sperg that much to wonder how this works, just pretend the person doing this is running the hose up under the mask or something.