A poor man's bipap, sort of
There is no backup rate, but you can set EPR to fulltime and set it from 1 to 3. Unlike flex on a Respironics, the resmed EPR actually equates to 1 to 3cm of pressure difference between inhale and exhale. It is different from having a wide range of pressure support on an AirCurve though, and instead of providing pressure support (pressure plus), the EPR is (pressure minus), so setting it up is different. But if you want to have inspiration pressure be up to 3cm different than exhalation prossure, yes the Airsense 10 Autoset does that weith EPR settings.