Oxygen Concentrator

I learned today that if the little water bottle attached to the concentrator is not screwed on perfectly it affects the flow of oxygen coming out of the canala. Also the threads in the bottle can become clogged if you do not use distilled water. Then the oxygen won't go through the canula. Anyhow thought I'd share that info with you all. Also the canulas should be changed too. They can get clogged as well. Happy Thanksgiving week to all .