Originally Posted by
Cathay Boy
As a medical device especially designed for people sleeping at night with no wifi/bluetooth capabilities CPAP has the least fire and electrical interference then dozens of electronic gadgets people bring on the plane nowadays. If this is truly the reason it's one of the most ignorant reason ever.
While that may be your opinion, it is inconsistent with general aviation safety protocols.
CPAP machines have motors. iPads don't. Motors create electrical interference as a byproduct of their operation. Motors are also more likely to create sparks, shorts, and create a fire risk.
If you have an FAA approved machine, it has been checked to ensure it is shielded and safe for aviation use. Just because a CPAP has not created a problem in the past is not the test for aviation safety. The device must be certified that it has been tested and is safe.