Keep in mind that even though the USA allows a third carryon bag for your CPAP machine, other countries may not have such an allowance. I keep a copy of my prescription, and all the DOT and TSA paperwork with me just in case I need it. I also carry a 10 ft AC extension cord, too often I end up in a hotel room where the AC outlet is too far away to be of any good.

I've come to the point where I don't bother taking my CPAP machine out of it's case anymore at the security checkpoint. If they want to swab it down, let the TSA open the case! No complaints so far.

Just curious what machines fellow cpap users have here for travel? I'm looking for something very compact and portable that can fit in my roll aboard for those occasions that a third carryon is not permitted. Been thinking of getting myself this one:
http://www.cpap.com/cpap-machine/aei...p-machine.html
or this one:
http://www.cpap.com/cpap-machine/pro...p-machine.html