Hybrid Mask Shape vs. Liberty Mask Shape

john_dozer · Post by **john_dozer** » Wed Nov 05, 2008 7:33 pm

The mouthpiece portion of my Liberty needs to be relatively tight.

Although my face looks typically flat, I find that in order to get the sides of the mask to seal, it has to be tight above and below the center of the lips.

Other FFM I've tried tend to be like this. below the bottom lip in particular, my face seems to curve tighter than the mask. So the bottom edge of the mask has to be tightened to really dig in.

I was wondering if the Hybrid mask has more curve to it than the Liberty?

Machine	Mask	Humidifier