EPR on CPAP same as BIPAP with pressure support of 3?

[chronicallytired]

Hi all! I'm 1.5mo into bipap and am teasing out my settings to try to decrease microarousals.

I've followed PeaceLoveAndPizza's recommendations on here and have decreased my pressure support to 4 which seems to have helped. 
I may try to decrease further to 3 to see if I can get even fewer arousals.

If I do get PS to 3, does that mean I would be on a system basically the same as a CPAP with EPR turned on? Asking because I'd like to invest in a travel CPAP (if there is one with EPR), since they don't make a small bipap.

[Sleeprider]

In comparing the Airsense and Aircurve mask pressure at EPR 3/PS 3, i cannot pick out a difference in how pressure changes are delivered. The hardware is identical, so other than possible changes to inspiratory timing and trigger/cycle sensitivity, the resulting therapy seems identical, and both use the EasyBreathe™ pressure transition algorithm. Although I prefer PS 4 vs EPR 3, I would not hesitate to use the CPAP pressure with EPR and EasyBreathe.

[PeaceLoveAndPizza]

There are other important differences as well with the bilevel. In particular trigger and cycle settings, S mode, higher pressure, TI min and max, probably more I am missing.

The travel question comes up often. It would be nice to just toss a small machine into a backpack. Whether it would work for you or not will depend on how you sleep with EPR=3 and how well the travel machine works for you. You can simulate it at home and decide.