Heated humidification added to CPAP can reduce dry mouth, nasal congestion, and sore throat

https://www.scribd.com/document/998608031/Is-a-Sleep-Apnea-Oral-Appliance-Right-for-You-Pros-and-Cons-Explained-179118

Heated humidification added to CPAP can reduce dry mouth, nasal congestion, and sore throat, improving comfort and long-term adherence to therapy.