Mist inhaler devices

A mist inhaler device for generating a mist containing a cannabinoid for inhalation by a user, the mist inhaler device comprising:

• a mist generator device which incorporates:
• an air inlet port and a mist outlet port of a mouthpiece;
• a liquid chamber containing a liquid to be atomised, the liquid comprising a cannabinoid;
• a sonication chamber;
• a capillary element extending between the liquid chamber and the sonication chamber such that a first portion of the capillary element is within the liquid chamber and a second portion of the capillary element is within the sonication chamber;
• an ultrasonic transducer having an atomisation surface, wherein at least part of the second portion of the capillary element is superimposed on at least part of the atomisation surface, and wherein when the ultrasonic transducer is driven by an AC drive signal the atomisation surface vibrates to atomise the liquid carried by the second portion of the capillary element to generate a mist comprising the atomised liquid comprising the cannabinoid and air within the sonication chamber;
• and
• an airflow arrangement which provides an air flow path between the air inlet port, the sonication chamber and the mist outlet port such that a user drawing on the mist outlet port draws air through the inlet port, through the sonication chamber and out through the mist outlet port, with the mist generated in the sonication chamber being carried by the air out through the mist outlet port for inhalation through the mouthpiece by the user.