I'm having the same issue with my Respironics Dream Station. I've only had it for a week. When you received your new CPAP was there a difference in noise when you inhaled? Was it as loud? Maybe I need a new machine?
I just bought a Respironics Dream Station Auto machine and it whines every time I take a breath. I can't sleep for listening to my own amplified breathing via the machine neither can my wife. I understand that all of them make some type of noise but this is ridiculous. My old Respironics System One machine didn't make any extra noise while I was breathing. What machine do you recommend that does not make any whining noises when you breath? Thanks for your help.