No, I am not implying that this specific project is handled particularly unprofessionally. I want to warn people off who might think that they could just hack devices and put them to use on patients. This stuff requires serious expertise and if you don't have access to it, your effort is for entertainment only.
Hospitals are already pressing CPAP machines into service in this way, this firmware hack is only making the devices more fitting for the role they're being asked to fulfill in exigent circumstances.
