Abstract: The invention relates to an ultrasonic mist inhaler, comprising: a liquid reservoir structure comprising a liquid chamber adapted to receive liquid to be atomized, a sonication chamber in fluid communication with the liquid chamber, a capillary element arranged between the liquid chamber and the sonication chamber, the sonication chamber comprising means of ultrasonic vibrations having an atomization surface, a capillary element retainer, wherein the capillary element retainer having a body surrounding the means of ultrasonic vibrations, the retainer body having an radial arm extending to the atomization surface for retaining the capillary element in surface contact with the atomization surface as depicted in FIG. 3.

Abstract: A mist inhaler device (200) for generating a mist for inhalation by a user. The device comprises a mist generator device (201) and a driver device (202). The driver device (202) is configured to drive the mist generator device (201) at an optimum frequency to maximise the efficiency of mist generation by the mist generator device (201).

Abstract: The invention relates to an ultrasonic mist inhaler, comprising: a liquid reservoir structure comprising a liquid chamber adapted to receive liquid to be atomized, a sonication chamber in fluid communication with the liquid chamber, a capillary element arranged between the liquid chamber and the sonication chamber wherein the capillary element is a material at least partly in bamboo fibers as depicted in FIG. 3.