If you are only using your cannula and tubing a few hours a day, it is recommended that you change your tubing and cannula, every 3-6 months. If you use your concentrator more than a few hours a day, it is recommended to change your cannula on a monthly basis and your tubing, at least, every 2-6 months.

How often should nasal cannulas be changed?

As for the nasal cannula, if you are wearing your oxygen 7 days a week, 24 hours per day, the cannula should be changed every 2 weeks. You can wipe the nasal prongs during those two weeks with a clean cloth that has a mild soap solution, but that is all you need to do.

What is the maximum length of tubing for a oxygen concentrator?

It is not uncommon for guidelines to instruct patients to use tubing lengths no longer than 19.68 ft (6 m) when using an oxygen concentrator and 49.21 ft (15 m) when using cylinders.