How to turn on EPR on ResMed AirSense 11. EPR (Expiratory Pressure Relief): EPR is a feature found in some CPAP machines, typically manufactured by ResMed. E.. The Best CPAP with EPR: AirSense 11 Auto CPAP. The AirSense 11 Auto CPAP is the newest, smartest CPAP by ResMed. In addition to being auto-titrating, the AirSense has a number of other advanced features to increase the comfort and efficiency of your sleep therapy.
At a setting of 3 you get 3 cm of pressure relief when you exhale. So, for instance. If you have your ResMed CPAP set at a Therapy Pressure of 10cm with an EPR setting of 2, then you will inhale at a setting of 10cm and exhale at a setting of 8cm. How to adjust your EPR setting on your ResMed CPAP (AirSense 11):. The exhalation relief feature on any machine will lower your therapy pressure by increments of 1 cmH2O per level to a maximum pressure relief of 3 cmH2O during exhalation. Some machines, like the ResMed AirMini, AirSense 10, and AirSense 11, even offer an option for EPR to be on full-time or only while Ramp mode is active.