The ventilator can cure sleep apnea and is also the preferred treatment for sleep apnea syndrome in addition to weight loss. The principle is that during the patient’s sleep, after wearing through the continuous positive pressure in the airway can be propped up the upper airway soft tissue collapse area, keep the upper airway open, no more snoring and breath-holding during sleep, no more apnea and other phenomena, but it needs to be worn for life, rather than wearing a period of time can be cured. However, there are some patients, after wearing the respirator mental state during the day became better, more willing to exercise, diet regulation, pay attention to weight loss, may wear a period of time, weight loss to normal or even low, and finally reach the phenomenon of complete cure also have.