A breathing machine that provides pressure to keep the upper airways open during breathing. This machine is often used for patients with obstructive sleep apnea.

a continuous positive airway pressure machine that pumps pressurized air into the lungs through the airway so that the airway does not have the opportunity to collapse or become obstructed

a device that pumps pressurized oxygen into the lungs through a mask worn by someone while sleeping

a breathing assist device, respiratory therapy