(12-19-2020, 09:14 AM)multicast Wrote: Let me guess: you're using an N30i?
That's the mask that I use. I've noticed fluttering now and again, but I normally just ignore it and try to get some sleep.
In terms of "fixing" it - I agree with an earlier poster; I don't think it's a setting issue. It's likely an issue with fit.
I don't have nearly as much experience as others, so please correct me of I'm wrong, but I would do a few things:
1) Make sure you have the right size of attachment (the part that touches your nose)
2) Make sure it's not too tight (I find this is an issue with me, I overtighten and it leads to other issues)
3) Make sure it's sitting on the right spot for your face. For me, once I have a loose fit that doesn't leak, I move the mask up my nose a touch and give it a gentle push towards my nose. That normally gives me a nice fit with minimal leaks.
If you use mouth tape, make sure it's not too high as well. When I first started with mouth tape I had some issues because the tape was sitting a touch high and disturbing my mask fit.