CrohnieToo; It is a model 500M and I am reading directly from a label on the bottom of the device:

       M Series
REMstar | BiPAP

and then it has several cautions followed by the various safety agency approval symbols, including one that I am not familiar with, it looks like an open book with an italicized 'i' on the right hand page.

The two meanings I can get are:

 That it is an M Series and either REMstar or BiPAP
or
 They are using BiPAP because it has C-Flex - which is a stretch ...

Thank you everyone for your replies and insight.  Correct me if I am wrong, in a nutshell, CPAP is the generic name and all the others i.e. IPAP, xPAP, APAP, all other PAPs, mostly give the differences of how the machine operates and how each brand markets their product.


_________________
Machine: Respironics Series M Auto CPAP with C-Flex and heated humidifier
Mask: Ultra Mirage Full Face

That is correct.  No matter what they are called, they all work pretty much the same as a leaf blower.

jones,
I say you are close, but it's my understanding that xPAP is the generic and CPAP, along with all those other PAPs is the difference in operation and market description.  Anybody else?
Grandma


_________________
ResMed Quattro Full Face Mask, ResMed Micro nasal mask
ResMed S8 Escape with heated humidifier
Pressure set at 11

There is no such thing as an XPAP machine.  The "x" in xPap is just a variable...a placeholder.  Like saying "It will cost you X-Amount".

The term is used in these forums as an easy way to describe all flavors of machines with one word instead of listing them out every time.

Yup what BarryKaraoke said. xPAP means any postive airway pressure device. We use APAP when referring to an auto-adjusting positive airway pressure device.

IPAP is the term used for the inhalation pressure setting on a bi-level device (Bi-PAP is Respironics' proprietary name for their bi-level postivie airway pressure devices).

EPAP is the term used for the exhalation pressure setting on a bi-level.

VPAP is Resmed's propriatary name for their bi-levels; a variable positive airway pressure device.


_________________
Some people are like Slinkies... Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.
Resmed's new VPAP Auto. Humidaire 3i, Simplicity & Micro mask, ResScan 3.4 software, SPO 7500 oximeter.