ResMed F40 mask questions?

[Big Guy]

I've had good results having more than just one mask on hand. It helps me to be able to swap masks out as I feel the need. I typically use one mask for a few weeks. Once I tire of it, I switch to another. That helps to break up the monotony some. 

[LuminousOne]

Funny you should ask about the Evora. While it was a better fit, I've still been having leak problems and they are worsening. I need to fasten the straps so tight they leave marks. I'm going to have to try something else and have a call into my sleep therapist.

[SDM1]

I started using the F40 mask 3 weeks ago and would fight you for it if you tried to take it away. I have been on CPAP or BPAP for 25-30 years and am now on the ResMed AirCurve 10 ASV along with the F40 mask. I don't think I have ever slept better in my life!

[WCR1950]

I gave up on the F40. Ended up being way too tight on my upper lip, affecting my bite, despite adjusting all straps. Now going to try Dreamwear full face (which is a hybrid). How do you find being on an ASV compared with apap and bipap? They want me to go back to the sleep lab (3rd time) to try an ASV; I could not tolerate bipap at lab sleep study. I had gone back to using the Evora for now.

[Scottiep3369]

What setting do you have your machine on for the Evora? The F40 says to use pillows but the Evora doesnt say

[WCR1950]

Full face with Evora -- that's how the technician set it when I first got the machine/mask. I did try switching it (with Evora) to pillows. It seemed that it was blowing too much air up my nose, so returned it to full face. My pressures are high (12-16 range and still not working too well) and I was told nasal pillows would probably not work well with high pressures. I have adjusted the Evora  head strap at the top to loosen one notch. It's more comfortable, but I am getting more leakage now. Actually, the ResMed F20 would probably be more suited to my needs, but it is dreadfully uncomfortable and I've tried a liner, silicone nose pad etc.

[Crimson Nape]

I too, have mine set to "Full Face". I have not experienced any problem in over a year.
- Red

[super7pilot]

I bought the F40 to add to my P10. At first it seemed comfortable. Even with my pressure at 11.4 I'm struggling with light leakage around the cheek area. my average leak rate is around 7 or so. Which shouldn't be an issue but is bothersome when trying to get to sleep on my side. 

Cinching down the straps stops the leaks. But the angle of the top strap seems to exert and upwards pressure on the mask. This makes the whole mask ride up my chin to the point that it is pressing so hard under my nose that the pain wakes me up. 

No combination of top/bottom strap adjustments seems to work. I might try a modification where I run a chinstrap from the top strap down under my chin or even around the lower strap in an effort to keep the mask from creeping up and crushing my nose.