You might try experimenting with a different hose, some hoses have more ridges on the inside than others and that can cause turbulence that can make a noise of its own from the airflow. Some hoses are "smoother" on the inside with less turbulence as a result. I've noticed this on my little travel m...

I'm a newbie, still waiting to hear from DME. I 'thought' I had my mind set on this machine, but after reading this, I'm not so sure. I am not worried about myself as much as disturbing my wife. I suppose that if she was patient enough to put up with the 'freight train' next to her all these years,...

I got the same machine a week ago, and I know exactly what your talking about. It like amplifies your breathing noise. Kinda weird. Hold your breath, it stops, then exhale and you hear your exhale. It sound like your listening to a baby monitor.