Can I Smoke While Using An Oxygen Concentrator?

When using an oxygen concentrator, don't smoke or be near someone who is.
You run the risk of harming yourself if you smoke while receiving oxygen therapy.
You must not allow smoking in the vicinity of the oxygen concentrator or any other oxygen-carrying equipment.
If you're going to smoke, make sure to remove your cannula, turn off the oxygen concentrator, and then leave the device behind. Using a portable oxygen concentrator while unable to leave the room means you must wait at least 20 minutes before smoking.