Depending on how your machine has been set up, you may or may not have the ability to set your EPR from the user menu. You may have to go into the Clinical menu to do it. On the A11 my understanding is that you can do that by simply holding two fingers on the menu screen for 4 seconds or so. Here is a link to the Clinical Manual for the A11. It will explain the details and the options you have.
My wife has an AirSense 10 For Her and uses pressure up in the 15 cm range. Here is an example of what the Daily report screen looks like for her.
Her Min-Max is now 13.6-14.4 cm. It has been adjusted many times over the 6 years or so she has been on the CPAP. There is some advantage in adjusting up the minimum pressure as it actually prevents events from happening. When you have a low minimum pressure the events have to happen first and then the machine responds. And then after it responds with more pressure it slowly ramps down again until another event occurs. Her EPR is 2 cm and is set to full time. As a start I would suggest an EPR of 3 cm and full time as well.
If you look at the graph detail you will see that in this example she only had 1 OA (obstructive apnea) event and you can see the pressure respond up. This is because her minimum pressure is high enough that she does not have many OA events. The main factor that increases her pressure now is flow limitation and snore. A higher maximum would likely eliminate those too, but she has tried and dislike more pressure. So the current limit of 14.4 cm has been set based on her tolerance for more pressure. Since she got this For Her machine her average AHI has been 0.45 and there seems to be no reason to push the pressure higher when she finds it uncomfortable.
If you have any questions about OSCAR or the Daily report just ask. I find this daily report pulls the curtain back on what is actually happening during the night.
