I recently started using oxygen for exercise. My oxygen supplier gave me a cloth "over-the-shoulder" bag to hold a D tank, but the D tank is fairly heavy, and not practical for exercising (unless I'm on the treadmill or stationary bike.) They also …

I used to swim a lot, until I became too short of breath. Now that I am using oxygen for exercise, I would like to start swimming laps at the local pool once again. Does anyone have any experience or any suggestions re managing oxygen tanks around the …