I am a longtime snorer and positional apnea sufferer. My sleep study measured 18 AHI. Doctor recommended BiPap, though he admitted that as a moderate sufferer I might not be motivated enough to stick with it. But I can be stubborn..
My first mask (full face) was a poor fit. Now using nasal pillows N30i, and that's going well. AHI between 2-4 most nights. But I sometimes I am congested, and am a bit of a mouth breather. (Chin strap helps a little.) So I tried a hybrid F30 mask for 5 days.
Unfortunately with the F30 I consistently get much higher AHI, between 8 and 12. I'd like to know what went wrong with the hybrid mask before completely giving up on it.
OSCAR shows some clues: when an OP happens they repeat while the machine ramps up the pressure to no avail. Also there are a handful of hypoapnea events. Neither of these happen with the pillow. But I don't know why, or if it is fixable.
Hybrid:
N30i:
I feel bad asking when my results are already pretty good, but I do want to understand this better, and be prepared for when I speak to the doctor again in a couple weeks. Thanks!