The BiPAP / BPAP Machine can deliver 2 different values of air pressure to hold a user’s upper airway open and help him/her breathe more effectively. ST Mode,  Auto-ST Mode (ST-A Mode), BPM, Ti-Control, auto-adjusting pressure levels, auto-Ramp, expiratory relief, integrated humidifier, 5” touch screen & therapy data report. Ideal for treating patients with COPD, OSA, CSA, OHS, overlap syndrome etc. The S/T mode (Spontaneous/Timed) is highly intelligent, in which a BPM value (Breaths per Minute) is set as the backup frequency of the user. If the user's respiratory rate falls below the value of BPM, the machine will add pressure to help him/her breathe.