I have a Fisher Paykel 431 and had not had any trouble with leaks to speak of. My CPAP pressure is 10. On July 1, I went for CPAP titration and they increased my pressure and put me on Bi-level pressure of 17/12 (I haven't got my new machine yet). I started the night with my mask, but as they increased the pressure I started having leak issues. They tried 3 different nasal masks (one that I really liked, but the tech switched it the minute it started leaking) and ended the night with my mask. Now my mask that fit so well, seems like it leaks every time I move. Could the higher titration pressures have caused it to become more loose fitting? I tried tightening up the straps, but that gets uncomfortable. Any ideas or thoughts would be greatly appreciated.

