The victim was bound upon this wheel, on his knees, with his hands behind his back.
A continuous positive airway pressure (CPAP) machine was initially used mainly by patients for the treatment of sleep apnea at home, but now is in widespread use across intensive care units as a form of ventilation.
The purpose of a CPAP mask is to better the sleep of those diagnosed with sleep apnea. A CPAP machine provides a steady stream of oxygen through the nose and the throat while â¦ he/she sleeps.