Went online and found where it does say settings 5-20 cm H2O with "Flex" of 1-3. I think flex is exhale relief? But not entirely sure. This unit is so new I cannot find out much about it. I am not able to change any settings and since I did not pay for this not sure I should. My clinitian can remote...

So, I was mistaken, 5 is the number it starts at. Last night during one of the many times awake i pushed the button to see the screen and it was at 9.8. it was blowing like a gale force wind and I had to remove it. My problem is the EXhale. I feel like i can never empty my lungs due to the pressure ...