inhaler

n. apparatus used for inhaling medicinal substances; respirator, device used for artificial respiration; one who inhales, one who breathes in

An inhaler or puffer is a medical device used for delivering medication into the body via the lungs. It is mainly used in the treatment of asthma and Chronic Obstructive Pulmonary Disease (COPD).
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Inhaler /in·hal·er/ 1. an apparatus for administering vapor or volatilized medications by inhalation. 2. ventilator. in·hal·er n. [more]Inhaler - Community and Resources

Noun
1. a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion
(synonym) inhalator
(hypernym) dispenser

v. inhale, breathe in, take into the lungs (air, smoke, etc.)