A CPAP (Continuous Positive Airway Pressure) mask is a device that is worn over the nose or mouth (or both) during sleep to deliver compressed air to the airway. The pressure helps keep the airway open, which can prevent sleep apnea symptoms such as snoring, choking, and pauses in breathing. There are several different CPAP masks available, each with their own unique design and features.

Full-face masks: These masks cover the nose and mouth and are often used by people who breathe through their mouths while they sleep.

Nasal masks: These masks only cover the nose and are usually used by people who breathe through their nose while sleeping.

Nasal pillow masks: These masks have two small, flexible "cushions" that sit at the base of the nostrils and are the most minimalist and less distracting.

Oral masks: These masks fit in the mouth and are typically used by people who have trouble keeping a nasal or full face mask in place.

Hybrid Masks: These masks cover both the nose and mouth, but have a unique design that separates the two, reducing pressure points and discomfort.

A person's comfort, preferences, and medical condition will determine the type of CPAP mask to be recommended.