MODEL RELEASED. Asthma inhaler use. 57-year-old man uses a Ventolin inhaler to treat asthma. The inhaler has a clear plastic volumatic adaptor attached to it. The asthma drug Ventolin is sprayed into the clear chamber then inhaled through the mouthpiece as seen here. Asthma is a disorder of the bronchial tubes. Symptoms include shortness of breath and wheezing.