An inhaler apparatus by which a vapor is condensed by a powder containing medication into a cloud of very fine particles that can be inhaled deep into a patient's lungs. The apparatus includes an enclosure, preferably a transparent container, which enables the patient to observe the formation of the...http://www.google.fr/patents/US5186164?utm_source=gb-gplus-shareBrevet US5186164 - Mist inhaler
