Monthly or more frequent checks
These parts usually deserve the most attention because they affect seal, comfort, and airflow.
- Mask cushion, nasal cushion, or full-face cushion.
- Nasal pillows.
- Disposable filters.
- Mask leak, fit, odor, and visible wear.
Quarterly checks
Every few months, inspect larger parts that may not fail suddenly but can slowly reduce therapy quality.
- CPAP tubing or heated tubing.
- Mask frame or full mask system.
- Hose cuffs and connectors.
- Machine air intake area.
Six-month and long-cycle checks
Longer-cycle items are easy to forget. Put them on the same checklist so they do not disappear behind monthly supplies.
- Headgear and chin strap.
- Humidifier water chamber.
- Washable or non-disposable filter.
- Machine age, warranty, and useful-life planning.