Yes, he had a sleep study, he does have allergies and sinus problems, the noise during exhalation, it sounds like snoring sometimes, others it's like his lips vibrating. Also the hose hisses. Is that normal? He likes to sleep on his back. He also uses extra pillows to raise his head up some. When he...

Please help. my husband has been using his remstar cpap , pressure 15 for about 6 months. He is snoring and exhaling making loud noises. He wears a full face mask, I'm not sure what kind? What may be causing this? I'm told he's not getting the full benefit if he is snoring? I'm surely not getting en...