I use a medium sized case for my AirMini and it easily fits in my carry on. The machine and hose fit in a bag and I either attach the power cord to the handle or plug in with other cords. I was also able to slide the cord into the medium, but it took me more work and wasn't sure I would be able to squeeze the tube that hard. The oversized bag (which is still half the size of the official CPAP bag) easily fits everything if you want it to be an all-in-one.
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