APAP (which automatically adapts to needed pressure) works the best, but only if the lower pressure in the range is set at the titrated level, not 0, and the higher pressure is set no more than 5 cm above that.
From there, nightly readings can allow the patient to modify the pressures to obtain the lowest AHI (apnea hypopnea index).
This procedure was developed my patients communicating on online forums. For some sad reason, machine makers fight the notion that patients can take responsibility for their own therapy.
Been sucking on a hose for over 15 years. The first 7 were frustratingly spent educating my self and trying every thing that was out there and finally finding the dental appliance/nose pillow anchor some folks were raving hard about it on one of the many blogs. ~~BOOM~~ No leaks AT ALL. It moves with you, no head gear. You rinse it clean every night because you have to warm it up with hot water so it will slip right on your upper teeth. Now my VA carries them for me. (Gigantic victory!) 100% no leaks. 100% compliance!