I thought the same thing, didn't see how I'd ever get used to it.
Took about a week and after the first good nights sleep in I don't know how long I was hooked. There's also a side benefit in that the CPAP air is filtered and it seems to help my allergies.
There are a variety of different masks. I watch TV with mine on and I thought the hose down the middle would drive me nuts so I got one that attaches from the bottom. They can't be returned but I found several outfits that would give you return insurance so it wouldn't be a total loss if it didn't work out.
Nor is there any noise to speak of.
There are a lot of different mask models. If one does not work try another. They make some that are just nose, some are just mouth, some are whole face. I believe Respironics makes over 20 different models.
It’s a really serious issue, don’t ignore it. The machine is very white-noise, you will get used to it in no time and the good night’s sleep will be worth it.