(02-08-2016, 09:49 AM)surferdude2 Wrote: I agree, you need to raise the minimum pressure, doing so over a period of time so as not to upset your perception of excessive starting pressure.
From your flow rate, it is obvious that only get short intervals of relaxed sleep separated by bothersome pressure increases due to what is likely flow limitations. It would be useful to see the graph for flow limitations. The flat topped wave forms in there are of greater concern and especially their duration.
You may very well end up with a starting pressure around 12 cm H2O but it will take some time to increment up to that level without causing CA's and an inaccurate perception of inability to tolerate the exhalation pressure. That perception disappears eventually but causes anxiety in many users. It can be avoided all together by increasing the minimum pressure in small increment over an extended period of time. Keep the EPR set at 3 for the duration of these changes and possibly forever, generally it's a nice feature to have all the time.