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Difference between CPAP vs. BiPAP?
Somewhat technical question, so please read the details of this question before answering. Now a CPAP machine is supposed to maintain a constant pressure above atmospheric, which never changes up or down for inhalation or exhalation. BiPAP on the other hand maintains two different pressure levels, one for inhalation another for exhalation. Now certain CPAP machines have a pressure relief mechanism which reduces pressure during exhalation, the feature is called: C-Flex in Philips machines; EPR in ResMed machines. If CPAP machines have this two-level pressure system, just like BiPAP machines, then how are they different? Is there a bigger pressure differential for BiPAP machines, and at what level is something consider CPAP with some flexible pressures, vs. a BiPAP?
2 Answers
- 2 months agoFavourite answer
They are different because BIPAP has IPAP and EPAP which means that during IPAP mode BIPAP will deliver pressure support or volume of air to decrease work of breathing. CPAP does not deliver pressure support regardless if they have two-level pressure system.
- ?Lv 72 months ago
As these machines mature, there are fewer and fewer differences so the lines get blurred. I now have an advanced APAP which automatically adjusts, that's the future for all 'CPAPs'. The Dr verifies you have issues and simply gives you a machine. Additionally, it reports back to the doctor any health issues, usage, etc.