Abstract: A smoking substitute apparatus for generating an aerosol, comprising: an aerosol generation chamber containing an aerosol generator being operable to generate an aerosol from an aerosol precursor, the aerosol generation chamber having a chamber outlet and at least one chamber inlet, air flowing in use from said at least one chamber inlet into the aerosol generation chamber towards the chamber outlet to entrain generated aerosol for inhalation by a user drawing on the apparatus; wherein, when the apparatus is oriented upright, said at least one chamber inlet is positioned higher than the position of the aerosol generator and configured so that substantially all of the airflow entering the aerosol generation chamber is directed away from the aerosol generator.

Abstract: A smoking substitute system comprises: a main body and a smoking substitute apparatus. The smoking substitute apparatus comprises: a housing; an air inlet at a first end of the housing and an air outlet; an air flow channel between the air inlet and the air outlet through the housing; and an aerosol generator to generate an aerosol, the aerosol generator located in the air flow channel downstream of the air inlet. The main body comprises: a main body housing configured to couple to the housing of the smoking substitute apparatus; a main body air inlet to the housing; a plenum chamber within the main body housing to receive airflow from the main body air inlet; wherein the plenum chamber is within the main body housing at a position upstream of the air inlet of the smoking substitute apparatus when the main body housing is coupled to the smoking substitute apparatus.

Abstract: A smoking substitute apparatus comprising an air inlet, a first passage leading from the air inlet to a first outlet, and an aerosol generator arranged in fluid communication with the first passage, the aerosol generator being operable to generate an aerosol from an aerosol precursor, to flow in use along the first passage downstream of the aerosol generator for inhalation by a user drawing on the outlet. The smoking substitute apparatus further comprises a second passage leading from the air inlet to a second outlet, separate from the first outlet, wherein the second passage bypasses the first passage downstream of the aerosol generator.

Abstract: A smoking substitute apparatus comprises: a housing having a longitudinal axis; an air outlet provided at a first end of the housing; an air inlet provided at a second end of the housing opposite to the first end; an air flow channel extending through the housing between the air inlet and the air outlet; a heater in fluid communication with the air flow channel. The heater is configured to generate an aerosol from an aerosol precursor. Electrical contacts are provided on a sidewall of the housing and are electrically connected with the heater. The electrical contacts are configured to engage with corresponding electrical terminals on a main body of a smoking substitute system.