problems with mask sealing/nasal pillows size, etc.

I have a new ResMed AirSense 10, which I use with the Swift FX for Her nasal pillows mask. I was fitted with the Small pillows, but I received both Medium and ExtraSmall with my new machine. I have used a CPAP machines for over 10 years, but had to get a new machine when the old one quit working. For the last few nights, when I check both with the machine and online on the MyAir website, I learn that my mask has been leaking. I've tried all the ways of adjusting of the straps, tightening, loosening, etc. Strangely, the first few nights I used the new machine, I had a much higher score on MyAir. When I saw the sleep doctor to get the results of my second sleep study, I told him that I found my new nasal pillows mask not as comfortable as my old one, he showed me a mask he prefers, called the Brevida. He ordered one of these for me from my supplier, but evidently it's not yet come in, as calls about this, messages left, have not resulted in anyone calling me back. Meanwhile, until I get the Brevida and try it out, do any of you have suggestions for how I might help this mask-sealing problem? Would changing pillow size, up or down, help?

You don't notice the leaks yourself? Do you still have your old nasal pillow? I just wonder if you wore it to see what your machine logs. Otherwise, it sounds like you are doing several things to try and figure it out. A pillow change might help. Make sure your face is clean as well as your mask. I have more problems with my mask leaking when my mask gets dirty. Are you talking about calling your doctor and not getting a response or the company? If it is your doctor, maybe you should just order one yourself. It gets very frustrating trying to find a mask that works well. I have tried several until I found one I like. Then there is the problem of paying for them. Insurance does not like to pay for us to try them out. Again, very frustrating.

Cover the exhaust hole and you will be able to tell right away where the leak is then. Sometimes you can't tell until you do that. Also consider mouth leak is happening with this mask and wasn't with your last one.