I'm happy to tell you what I know but perhaps it will lack the specific points of interest to you.
July 2012, carrying the same CPAP in all reports. It said it was rated for inflight use and required a plug for power.
Originally Posted by
SanDiego1K
My husband was absolutely forbidden to use his on CX SFO-HKG. The FA brought documentation to show him. He was then met in HKG by a CX employee with further explanation as to why they do not allow it.
For the above, he was given a page from the manual that said it was forbidden.
April 2013: called Cathay to ask about using his CPAP. He was shunted up several levels. When he ended the phone call, I expressed concern that they might not consider him fit for travel. He called back and indeed they had marked him to deny him boarding. He certainly can manage without a CPAP for a night, it's simply that the quality of sleep is much better. He persuaded them of this and was allowed to fly (but not use his CPAP).
July 2013: FA chatted with him after meal service. He praised the CX experience but said he was frustrated that he was not allowed to use an airplane rated CPAP. She said policy was changed one week earlier and that he could indeed use it. He neither asked for nor was shown documentation. He already had what he wanted, permission to use it.