I received my Respironics Mask liners from Amazon. I put one on last night. A bit uncomfortable at first, because of the thickness of the fabric and also the size of mouth opening on the fabric, somewhat small, I thought. It touched my lips. But I could breathe OK and it didn't bother me during the night. The large leaks were however worse than ever. Practically uninterrupted from 3:30 to 6:30, some lasting 60 min, a few 30 and 40 min, for a total of 46% of sleep time. I don't know if it is because of the liners. I decreased the Ramp setting from 12 back to 10. See how it goes. I'm still not too sure how to read the Flow rate in connection with the LL. . I zoomed it max. THe AHI's are minimal, even by zooming. The Flow Rate waveform goes from +180 to - 120. I don't know what is the relevance of this amplitude.. I think these LL affect my sleep in a subtle way. I don't know if these machines go out of adjustment and need to be re-calibrated. I'll contact the sleep clinic to see if there are adjustments to be made or perhaps have the seal replaced.
Here is the graphic, if you can glean something that I don't see..
Thanks
Ittiandro
I enclose today's report again, with maximum zoom on the Flow rate graph, showing 5 secs spans. I don't know how to interpret it in reference to the Large Leaks and possible hidden AHI's , if any. For one thing, I see no additional AHI events under the LL sections or anywhere in the event flag graph, even with max zoom. . Does this mean that there are no hidden AHI's ? Where would these hidden AHI's show at max Zoom level, if any?
Regarding the LL issue, I conducted a retroactive search since I began the therapy in June 2020. It appears that these LL started cropping in mid June 2021, intermittently at first and then picking up in number and duration. I never tried other masks, but I can only breathe through the mouth, due to a almost permanently blocked nose and polyps on the throat., so I cannot use either pillows or the other masks you suggested. My doctor knows that I cannot breathe through the nose, but the therapy has been so far successful, unless the large leaks issue has a negative bearing if it continues. I'll see how it goes with the liners. If worse comes to worse, I'll have to replace the silicon seal.