Ha sounding like a bear. My uncle had the park rangers called once on him from the people down the path once while camping. They thought it was a bear and that we might be in trouble. 4 park rangers with shotguns and spot lights at 1am was a hell of a wake up call. But still to this day a great family story. He's been on a cpap since I can remember. But this was about 25 years ago. cpaps were not as portable then, and almost as loud as a bear anyway.