CPAP masks and accessories are highly personal. What some find comfortable, others might find intolerable. I don't think any of us actually *enjoys* having to use a CPAP machine.
I was measured and fitted with the F10 when I was first diagnosed with sleep apnea. The F10 seems to work well enough. I tried the mini-masks that only cover the nose; they seemed much less intrusive, so I hoped they would work. Unfortunately, they did not for me. I quickly discovered that with only my nose covered, my mouth would drop open while I slept, rendering the whole CPAP machine ineffective. I don't know how those nose masks work for anyone. CPAP stands for "Continuous Positive Airway Pressure". So how does anyone keep his or her mouth closed while the CPAP machine is pressurizing your airway?