Your Oxygen Equipment | Patient Education | UCSF Health
Carrying cases, carts Ambulatory oxygen tanks can be rolled in small carts, carried in backpacks and sometimes even worn as a waist pack. Portable oxygen concentrators are rolled in their own cases, worn in a backback on the back or slung over the shoulder. Higher Oxygen Flows. Rates of 4 liters/minute or greater are considered higher oxygen flow.