It totally freaked you out _AT_FIRST_!I have the nasal pillow style. During the sleep test they put on the regular mask, but it totally freaked me out and I couldn't do it.
That's the key thing, "at first". If you calm yourself down and work through that first night (it's only air, I can do this, lots of people use these things and so can I, I'm gonna get used to it!, etc.), you quickly get used to the full-face mask... and then you get to enjoy all its benefits forever (no taping your mouth shut like a hostage, no using giant rubberbands around your head to hold your mouth shut, even severe nasal congestion is never a problem and you can take big huge breaths through your mouth anytime you like, there's only one seal to worry about instead of 2-3, etc. etc.).
However, new people mistakenly assume that a freak-out or other negative reaction during the first 5 minutes of the first night means intolerability forever. In the vast majority of cases, it DOES NOT, and it's a shame that so many people miss out on all the advantages of a full-face mask just because they completely ditch the concept within 5 minutes and never think to work through the problems and/or try it ever again.
I too was VERY negative on the full-face the first time I tried it... I remember thinking that I'd NEVER be able to sleep with this thing on my face, and it felt like I was suffocating (which was all in my head of course), and it was horrible, and I'd rather die than have to sleep wearing it.
Within two days, I was liking it.
Within one week, I'd wake up and have to reach up with my hand and touch it TO EVEN DETERMINE IF I WAS STILL WEARING IT AT ALL!
New folks, please don't immediately and eternally reject the full-face mask because initially you hate it. Keep at it, if you can. Your reward will be one of the best, simplest, most comfortable and most effective CPAP interfaces out there. If possible, don't just run to nasal interfaces after a lousy 5 minutes and never look back. The human body/mind is capable of quick and incredible accomodation of new things like full-face masks... try it and you'll see. What once made you freak out and panic can soon become barely even noticeable, and even your best buddy. It can be THAT dramatic of a change, trust me.
Just my two cents... but I've been there. And the same full-face mask I loathed the first night, I now love... and congestion never worries me (bring on those colds and allergies, baby, I don't care!), and I own no big elastic headstraps or hostage mouth tape, nothing. It's great.
Hope that helps.

