Why do I get dry mouth even when using CPAP?

Dry mouth occurs when your mouth opens during sleep, humidity is too low, or the mask leaks, allowing air to escape.

How do I stop mouth breathing with CPAP?

A soft chin strap helps keep your jaw closed. If mouth breathing continues, switching to a full face mask is recommended.

Yes. Increasing humidity by 1–2 levels usually reduces dryness without causing condensation.

Mask leaks cause dryness by reducing the stability of airflow and allowing moisture to escape. Cleaning or replacing the cushion often fixes this.

Heated tubing keeps moisture consistent throughout the hose, improving dryness caused by cool or dry air.

Yes. A full face mask maintains proper pressure even if your mouth opens during sleep, reducing dryness.

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