• Protect every breath

    The S9 VPAP™ ST-A with intelligent Volume-Assured Pressure Support (iVAPS) offers an intelligent option for noninvasive ventilation for patients. Learn more about iVAPS.

    Evidence from a recent study conducted on patients naive to noninvasive ventilation indicated that when treated with iVAPS, they adhered to therapy for 60 minutes longer (per session) than when treated with standard pressure support (PS) modes.1

    60 Minutes More study

Intelligent, personalized and automatic


Key features

  • Targets alveolar ventilation for stable gas exchange in a variety of breathing conditions
  • Includes a Learn Targets mode to make it easier to set up with minimal respiratory expertise required
  • Applies intelligent backup rate (iBR) only when needed, maximizing spontaneous breathing while providing a safety net
  • Includes Vsync leak compensation and TiControl™ to significantly improve patient-ventilator synchrony

What sets the S9 VPAP ST-A apart?

  • High performance — pressures to 30 cm H2O may treat the full range of NIV patients with a small, portable device
  • Pediatric clearance — cleared to treat pediatric patients weighing more than 30 lb (>13 kg) and available in a child-friendly design. iVAPS is cleared for patients weighing more than 66 lb (>30kg)
  • Added security — configurable audio and visual alarms


Seamless from hospital to home

For patients treated on ResMed's StellarTM Series in a hospital setting, ResMed VPAP devices provide a seamless transition to successful treatment in the home on proven ResMed technologies.


  • 01

    Jaye et al. Eur Respir J 2012

How to buy

After receiving your official diagnosis from your doctor, you can get your mask and device from a home medical equipment (HME) supplier. For a list of local equipment suppliers in your area or online retailers that sell ResMed products, please contact our Customer Service department.