The issue here is that CX explicitly say that and I just carry forward the words, don't shot the postman :P
In-seat power will soon be available across our entire fleet for the devices mentioned above. These in-seat power ratings are however not designed for use with medical devices such as CPAP machines. Passengers must provide their own batteries that are sufficient to power medical portable electronic devices.
I think it's more on liability shifting that they don't want someone to sue them (or otherwise damage the lovely IFE) when something went wrong .... as not all CPAP are OK to operate under 400Hz electricity I guess
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My dad use one of those for 10 years before and stopped 2 years when he reduce his diet and go on exercise.
The first couple CPAP were quiet noisy but the current ones are pretty quiet and blend in to ambiance noise, so all is fine
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