A pediatric medication inhaler is provided for cooperation with a medication dispersing cylinder and a supply of medication. The inhaler is a one piece device in the nature of the mask (52) molded of integral plastic and having wall portions of differing thickness for controlled flexibility. The inhaler is characterized in having a bubble (58) of relatively thin wall projecting from the mask-like device, which bubble flexes inwardly upon inhalation so that a person providing medication to the infant can watch for inhalation.
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