Since the switch from CFC-based to HFA-based albuterol inhalers, a generic version of albuterol no longer exists. Today, there are 3 different brands of albuterol HFA available: ProAir, Ventolin and Proventil. Is there a difference between these inhalers? Does one work better than another? The truth is that all of these inhalers do basically the same thing -- relieve the acute symptoms of asthma, such as wheezing, shortness of breath, coughing and chest tightness. Ventolin, however, has a dose counter, while ProAir and Proventil do not. A dose-counter on a rescue medicine may be an extremely important tool to have, because there really isn't another way to know how much medicine is left in the inhaler. Read more about the different forms of albuterol, and why a dose counter should probably be on all forms of asthma rescue inhalers.