Are we talking Bipap/Bipap-Auto and BiFlex? Or do you relate inspiratory flow as IPAP and EPAP as expiratory because u set Flex. In a APAP u dont talk about EPAP and IPAP. Auto -pressure with pressure relief but i understand what u mean. Resmeds algoritm is more aggressive and Philips algoritm is like u say waiting for the patients breath.
The EPR is static on 1 2 or 3 cm not flowbased like Flex
EPR is fixed 1 2 or 3 cm H2O on entite exhalation. A-Flex\C-Flex 1 2 or 3 depends on the amount of inhalation. Big breath it the relief is bygger, small inhalation small relief. But nerver more than its value 1/2/3 cm. And c-flex a-flex differs because it doesnt relief more than half of the exhalation cycle. After half exhalation it goes back to initial pressure that was at the start of the inhalation. This prevents apneas that can occour if u use pressure relief on entire exhalation
