To be honest I think a mask is only as good as the person wearing it. Every time I go out (once a week!) I see people with chuckaway or reusable masks stretched across their faces, pulling them off by the mask front and crumpling them up in their pockets. Or they wear them under their chin, their nose, round their wrist... doesn't matter what grade mask you wear if you treat them like that. Then piles of them end up littering the streets.
I made my own three layer masks, measured to fit us as I couldn't find anything else that felt breathable, comfortable and fitted right round my face. OH was worse because he has a very broad face and he found them all very tight. I won't be moving to anything else in a hurry.