Just to update.... Since I also bought a China mask....
I also got one that is slightly different.... It seems to be the wide version, and the benefit is they put velcro on the bottom, and two sets of velcro straps to adjust onto your head at two points... (One set straps behind your neck, the other on the top/upper back end of your head.
The mask presses against my mouth.
I did bend it a bit in the mouth region, and I could bend it a bit more, so it's not too bad.
Only problem is when wearing this mask, since it is up so close, it takes some effort, and a little bit uncomfortable to open your mouth wide if you want to shout or something :P Normal talking should be ok...
