I am newly diagnosed with COPD and must use oxygen to sleep and fly and over 5000' (well, it turns out I need it over 3500'). I do fine on the continuous O2 at home but when we travel with my Inogen pulse it goes "whoosh, whoosh" in my nose and in my head. For other medical reasons I have to sleep on my side, so I have to take the cannula off one ear and hold it in my nose to sleep so it doesn't drive my up a wall with the noise. Does anyone have a solution for this? When the doctor walked in the office on the first visit and said "Hello, I'm Dr. C and you have COPD and hypoxia" I about fell off the chair. I had NO idea. Thought maybe I had a cold. Bowled me over for sure. This is sure a learning process!!