With a PAP machine being a prescription device, it is never advisable that you adjust the pressure settings on the device yourself. The process of setting up your correct pressure level, called titration, is first established when you go to your doctor to get your PAP device. If you feel like the pressure is too much, you can request a new titration study to get it where you feel most comfortable. Your doctor may also recommend an Auto-PAP device, which automatically adjusts the pressure levels for you while sleeping.