A vaporizer apparatus includes a pump housing, a main housing containing an evacuation chamber, and an operation unit attached to the main housing. The operation unit selectively seals the evacuation chamber off from communication with an air inlet. One or more pumps in the pump housing is/are operable to generate a vacuum in the evacuation chamber. A mouthpiece is attached to the main housing, and may be selectively placed in communication with the evacuation chamber. When oil is placed in the evacuation chamber and the operation unit is operated, the evacuation chamber is temporarily sealed off from the inlet, creating a vacuum sealed chamber connected with the pump(s). Then, the pump(s) is/are activated to reduce pressure in the evacuation chamber, and the oil is vaporized at an ambient temperature without requiring a heater. When the operation unit is released, the evacuation chamber is emptied via the mouthpiece.

A method of control for an aerosol delivery system is disclosed herein. The method generates a first version of an aerosol having at least a first property modified to a first version within a first phase of the inhalation, detects a second phase of the inhalation, and generates a second version of the aerosol having at least the first property modified to a second, different version in response to detection of the second phase of the inhalation.

A method of control for an aerosol delivery system is disclosed herein. The method generates a first version of an aerosol having at least a first property modified to a first version within a first phase of the inhalation, detects a second phase of the inhalation, and generates a second version of the aerosol having at least the first property modified to a second, different version in response to detection of the second phase of the inhalation.

The invention relates to an ultrasonic mist inhaler (100), comprising: —a mouthpiece (1) for inhaling the mist, —a liquid reservoir structure (2) comprising a liquid chamber (21) adapted to receive liquid to be atomized, —a sonication chamber (22) in fluid communication with the liquid chamber (21), wherein at least part of the liquid reservoir structure (2) and the mouthpiece (1) form the sonication chamber (22).

An electrolytic gas suction tool includes: a battery; a control substrate which controls power supply from the battery; a pair of positive and negative electrodes which are electrically conducted to or cut off from a positive electrode and a negative electrode of the battery by the control substrate; an electrolysis tank which is capable of storing water and into a lower part of which the pair of positive and negative electrodes are inserted in the mounted state; and a heater device which is heated to generate nicotine containing steam upon receiving the power supply from the battery by the control substrate.

An electrolytic gas suction tool includes: a battery; a control substrate which controls power supply from the battery; a pair of positive and negative electrodes which are electrically conducted to or cut off from a positive electrode and a negative electrode of the battery by the control substrate; an electrolysis tank which is capable of storing water and into a lower part of which the pair of positive and negative electrodes are inserted in the mounted state; and a heater device which is heated to generate nicotine containing steam upon receiving the power supply from the battery by the control substrate.

A pulmonary delivery device (300) with a first chamber (206) adapted to thermally vaporise a quantity of a first fluid to form a relatively warm first vapour and a second chamber (208) adapted to atomize a quantity of a second fluid without heating of the second fluid to form a mist of a relatively cold, second vapour, the device further comprising an outlet via which, in use, a user can inhale a mixture of the first and second vapours. The second chamber is in the form of a passive atomiser wherein the second chamber is selectively or continuously in fluid communication with air, the second chamber including at least one flavouring or aroma wherein the flavour is inhaled by drawing air through the chamber.

A pulmonary delivery device (300) with a first chamber (206) adapted to thermally vaporise a quantity of a first fluid to form a relatively warm first vapour and a second chamber (208) adapted to atomize a quantity of a second fluid without heating of the second fluid to form a mist of a relatively cold, second vapour, the device further comprising an outlet via which, in use, a user can inhale a mixture of the first and second vapours. The second chamber is in the form of a passive atomiser wherein the second chamber is selectively or continuously in fluid communication with air, the second chamber including at least one flavouring or aroma wherein the flavour is inhaled by drawing air through the chamber.

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).

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).