I'm about to get my first CPAP setup. My local medical supply company quoted me about $1700 for a Respironics 550, humidifier and "supplies" which I took to mean a mask. Online I got a quote of $655 for the CPAP and humidifier (not icnlduing mask or other supplies). I must be missing something. Is t...

I'm new to all of this. I recently received a prescription for a CPAP machine and nasal mask. I'm just wondering what happens if I start breathing through my mouth if I have a nasal mask? Will I receive any benefit or do I neutralize the nasal mask when I open my mouth? Is a full face mask a better ...