(04-01-2015, 04:13 PM)jcarerra Wrote: Well, this is very interesting. I took a close look at my masks, and the cushion size (chin to nose bridge) for the FX and F10 are very close to the same.
The Mirage Quattro though is MUCH "taller" (longer from chin to bridge) than the others..
All are marked as M size.
I wonder if a 'small' Mirage Quattro would work better for me...and why is there such a big difference in masks supposed to be the same size?
You got me there. I have no idea why the differences in sizing. I was fitted with a medium Mirage Quattro by a respiratory therapist. I switched to a small because I felt the medium was encouraging, with slight downward pressure, me to open my mouth and I was getting dry mouth. The change to a small worked for me.
If you feel like trying a small Mirage Quattro, I would recommend that you read an article on a blog called Mask Arrayed. The title of the article is "Taming the Mirage Quattro". It is listed near the top of the main page. Jan Knitz did a good job of describing a good method for fitting.
One of the things that I like about the Mirage Quattro is that, once one gets it all set up right, there is no more fiddling necessary. Just put it on and go. After a while the headgear will stretch a little and refitting may be necessary.