Aerobika is definitely a good part of the arsenal. My diagnosing provider's (who didn't even mention airway clearance at first) office mentioned the Acapella at first. I bought it, hated it, and called them back to say I had heard in studies that the Aerobika is more effective. They said, "oh, yes, we like it more but didn't mention it as it's not generally covered by insurance." Why they didn't at least mention it...?

Importantly, I don't believe it has been mentioned that the Aerobika's recommended life is 6-12 months. NJH says 6 months and I have seen other places say 12 months. It's more about wear and tear, as I understand it. I alternate between a few (was fortunate to have a respiratory therapist friend hook me up with some after I bought my initial one) so am going with at least a year. A good respiratory therapist can also take a look at the mechanism inside to see if it's worn out, or not.

NJH also recommends using the manometer (meter for measuring your outward breath) attached to the Aerobika but I have found those don't seem to be widely used or available:
https://www.nationaljewish.org/conditions/medications/airway-clearance-techniques-devices/using-the-aerobika-with-a-manometer