CPAP Machine Types FAQ
  • 17 Jun 2022
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CPAP Machine Types FAQ

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Not sure which CPAP machine is right for you? Here is a brief Q&A for your reference. If you want to learn in-depth about different types of CPAP machines, please refer to this article.

Q: Is a Bi-Level machine the same as BiPAP?

A: Yes, it is the same thing.

Q: What is a BiPAP ST machine?

A: It is a positive air pressure device that has separate pressure settings for inhale and exhale as well as a back up respiration rate to ensure that you are breathing frequently enough.

Q: Is BiLevel the same as BiPAP?

A: Yes, except different manufacturers may use one term over the other. 

Q: What is a VPAP machine?

A: Variable positive airway pressure (VPAP) is a treatment method that involves two distinct levels of air pressure settings consistent with an individual's physiological needs to accommodate natural breathing.

Q: What is VPAP Auto?

A: VPAP auto combines the autoset algorithm with the ResMed Easy Breathe technology to make breathing easier for OSA patients, non compliant CPAP users, and those who require more pressure support. 

Q: What does a VPAP machine do?

A: VPAP machines provide sleep apnea patients with airway pressure through the nose and throat to maintain an open airway during sleep. VPAP delivers 2 levels of pressure – an EPAP and IPAP – whereas CPAP only delivers one - EPAP. 

Q: What's the difference between a BiPAP and a VPAP?

A: BiPAP and VPAP are the same; only BiPAP is manufactured by Philips Respironics while VPAP is by ResMed.

Q: What is a BiPAP ASV?

A: The ASV machine, or Adaptive Servo-Ventilator, tracks normal breathing in a 3-4 minute window and determines the average peak flow or minute volume of the patient. From there, it will maintain the minimum levels of inspiratory and expiratory pressures so long as the patient maintains the threshold of peak flow and minute volume. If the patient begins to fall below this threshold, the ASV machine will increase the inspiratory and/or expiratory pressures enough to get the patient back on target.  


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