ProAir HFA
"I'm 53 and have had acute bronchial asthma my entire life. ProAir is by far the least effective and most problematic delivery system for albuterol I've experienced. While the inhalers are supposed to have 200 metered dosages, they fail through leakage and clogging. We realistically average 50-75 uses per inhaler. Air travel almost always destroys usability. Because of clogging and priming, actual dosage is inconsistent with this particular brand. It is a health hazard, a deeply flawed delivery system that endangers patients. DO NOT RELY upon a single inhaler if you use ProAir as even "full" and "brand new" units are prone to immediate failure."