best cpap machines

[RLSdss]

which cpcp machine is the best for complex apnea?

[Heracles]

The best one is the one that will help you the most.

That includes :
--One that is able to provide the therapy you need (what is it that you need as a therapy ?)
--One that you have access to
--One that you can afford
--One that offers you the kind of extras that will be of importance to you

As such, I consider that there is not much more we can tell considering how little (nothing) you told us about your needs...

[GavinG]

There is no best machine.

There is only the most suitable machine that
the most suitable setting.
and the best way to work with people and machines.

[clownbell]

OP has posed a question similar to "how high is up" or "what color should I paint my house." Move on