you need to keep those lips together. here is what i use-https://www.cpaptalk.com/viewtopic.php? ... s#p1086296
that plus a foam firm cervical collar will do the trick.
good luck!
you need to keep those lips together. here is what i use-https://www.cpaptalk.com/viewtopic.php? ... s#p1086296

Remember when you were a kid playing in the swimming pool. Maybe only girls did this but we would hold "underwater tea parties" where we would pretend to drink tea (pinkies up!) and converse. We could open our mouths and talk under water, and water would not enter the airway because we knew how to close off the airway from the mouth by tightening the muscles in the back of the throat. Nobody taught us how to do this. It was kind of instinctual. That's exactly what we need to do to open our mouths while the CPAP is running. Same thing.I know you are going to think I am a crazy old lady but eventually you could learn to close off the back door from your airway into your mouth and it won't matter if you yawn, or talk, or whatever....and no air will "whoosh" out your mouth.
I can do it (many others as well)....I can talk, open my mouth wide, even stick out my tongue and blow raspberries with mouth wide open...all with mask and machine on...without any air from the airway entering my mouth.