While the benefits of CPAP* therapy are clear, you could experience a dry mouth or throat undergoing this treatment.¹

This is especially true if you are new to the therapy and just starting to adjust to the pressurized air. It can also be an issue if you breathe through your mouth while asleep.    

A heated humidifier, or chamber filled with water that sits on a heater-plate, may help alleviate dry mouth and throat issues. Enabling air to pass over warm water before it reaches your airways is shown to prevent nasal congestion, and, in doing so, may also increase therapy compliance.^{2, 3}

Here are three other helpful measures you could take to alleviate upper airway or throat dryness.

1.  If you breathe through your mouth as you sleep and you wear a nasal or nasal pillow mask, consider using a chinstrap. This will help address the problem and improve the efficacy of your therapy.   
2. Check your mask fits well and that there are no excessive leaks. A leaky mask can also cause your mouth and throat to feel dry.   
3. Drink water throughout the day to lessen the chances of getting dehydrated while using your CPAP device as you sleep.