ResMed S9 VPAPā„¢ ST

VPAP ST is a noninvasive ventilation (NIV) device designed to treat non-dependent patients requiring the security of a back-up rate (up to 50 bpm), in the hospital or the home.

VPAP ST includes ResMed’s proprietary therapy mode: iVAPS (intelligent Volume-Assured Pressure Support). Treating patients with changing respiratory needs, iVAPS is intelligent, personalised and automatic.


VPAP ST is ideal for adult and paediatric patients (over 13 kg, or over 30 kg for iVAPS mode). It comes packed with a range of trusted features and technologies—enhanced to improve patient comfort and therapy outcomes.

Now on ResMed’s award-winning design platform, this high performing device is more compact than ever. VPAP ST can also be powered by an external battery, the ResMed Power Station II (RPS II). ResMed’s latest ResScan™ software provides access to efficacy data with high-resolution flow and pressure data and oximetry details for therapy monitoring.


ResMed S9 VPAP™ ST Specifications

Operating Modes: BiLevel and CPAP, S, ST

Pressure range: IPAP: 4–25 cm H2O

EPAP: 2–25 cm H2O

Size (Approximate): BiPAP = 6.0 x 5.5 x 3.4 inches BiPAP with Humidifier = 6.0 x 11.5 x 3.4 inches Power Supply = 6.5 x 2.5 x 1.5 inches

Weight (Approximate): BiPAP = 1.8 lbs BiPAP with Humidifier = 3.5 lbs Power Supply = 1.25 lbs

Power supply: 90W power supply unit

AC 100–240V 50–60Hz, 2.2A AC 110V 400Hz, 2.2A 90W DC/DC converter 12V, 24V
Dimensions (L x W x H): 153 x 140 x 86 mm

Weight:0.83 kg 

Air outlet: 22 mm taper, compatible with ISO 5356–1:2004