It so happens that I have in front of me two packages: one of CFC-propelled (Warrick Pharmaceuticals), and one of non-CFC-propelled albuterol inhalers (Proventil). The latter was a replacement for the former.
The labels for each package state that each inhalation provides 90 mcg of albuterol from the mouthpiece.
So -- should I believe you, or my lying eyes?
Take a look at the molecular make-up of the compound; you will find close to it the
mole weight or molecular weight of the compound in micrograms. Tell me what they each say.
I have the same one from Warrick someplace, and one from ProAir©HFA. I know they are different, and my Doc is chasing it back through his med center contacts. He agrees, it is different.