CPAP: Continuous Positive Airway Pressure mode, suitable for Obstructive Sleep Apnea.

AUTOS: Intelligent regulation of inspiratory pressure to ensure a more smooth and comfortable breath.

S: Spontaneous ventilation mode, suitable for patients with spontaneous respiratory.

T: Timed mode, suitable for patients without spontaneous respiratory capacity.

S/T: The machine automatically switches between S and T modes according to patient's
respiratory condition.

VGPS: Volume Guarantee Pressure Support, meets patient's tidal volume requirement with its minimum pressure.