RE: CPAP or APAP
A pressure of 8-18 is a wide range. Check to see where your 90% pressure reading has been and set your range around that number.
If the Cpap pressure of 13 has been working for you, then a setting of 11min to 15 max may work.
Rule of thumb: Keep the minimum pressure 2cm below the 90% number and 2cm over.
Your profile states your using the AirStart. I thought in another thread you were changing to the AirSense. If so, please update your profile. Thanks.
RE: CPAP or APAP
If your using #SleepyHead, look on the daily page under stats, you will see the pressure ranges: min, med, 90% and max.