ResMed Lumius 150 AutoSet is an automatic BIPAP device. It regulates the air pressure during sleep in patients with sleep apnea. Continuous positive airway pressure (BIPAP) is a form of positive airway pressure ventilator. It applies mild air pressure on a continuous basis to keep the airways continuously open in a patient who is unable to breathe spontaneously on his or her own. Both modalities stent the lungs' alveoli open and thus recruit more of the lung's surface area for ventilation.... ResMed Lumius 150 AutoSet is an automatic BIPAP device. It regulates the air pressure during sleep in patients with sleep apnea. Continuous positive airway pressure (BIPAP) is a form of positive airway pressure ventilator. It applies mild air pressure on a continuous basis to keep the airways continuously open in a patient who is unable to breathe spontaneously on his or her own. Both modalities stent the lungs' alveoli open and thus recruit more of the lung's surface area for ventilation. BIPAP typically is used for people who have breathing problems, such as sleep apnea cabondioxide buildup in body etc. Show More