Aerosol provision device

Abstract

There is provided an aerosol provision system comprising: a housing having a mouthpiece, the mouthpiece having an air outlet; and, a consumable unit contained within the housing, the consumable unit comprising: a source of aerosol generating medium; and, an airflow channel wall forming an airflow channel that passes the source of aerosol generating medium and terminates in the vicinity of the air outlet of the housing.

1 . An aerosol provision system comprising:
 a housing having a mouthpiece, the mouthpiece having an air outlet; and,   a consumable unit contained within the housing, the consumable unit comprising:
 a source of aerosol generating medium; and, 
 an airflow channel wall forming an airflow channel that passes the source of aerosol generating medium and terminates in the vicinity of the air outlet of the housing. 
   
     
     
         2 . An aerosol provision system according to  claim 1 , wherein the consumable unit comprises a filter material. 
     
     
         3 . An aerosol provision system according to  claim 2 , wherein the filter material is in the airflow channel. 
     
     
         4 . An aerosol provision system according to  claim 2 , wherein the filter material forms the airflow channel wall. 
     
     
         5 . An aerosol provision system according to  claim 2 , wherein the filter material is compressed by the housing when the consumable unit is inserted into the housing. 
     
     
         6 . An aerosol provision system according to  claim 2 , wherein the filter material is one or more members selected from the group consisting of: tobacco; cellulose acetate; and porous paper. 
     
     
         7 . An aerosol provision system according to  claim 1 , comprising a movement mechanism to rotate the consumable unit relative to the housing. 
     
     
         8 . An aerosol provision system according to  claim 1 , wherein an outer portion of the consumable unit is of a conforming shape to the housing near the air outlet. 
     
     
         9 . An aerosol provision system according to  claim 1 , wherein a portion of the consumable unit has a frustoconical shape. 
     
     
         10 . An aerosol provision system according to  claim 1 , wherein the source of aerosol generating medium terminates in the vicinity of the air outlet. 
     
     
         11 . An aerosol provision system according to  claim 1 , wherein the consumable unit comprises a projecting first portion and a recessed second portion and the projecting first portion is of a conforming and complementary shape to the recessed second portion. 
     
     
         12 . A consumable unit for use in the aerosol provision system of  claim 1 . 
     
     
         13 . A housing for the aerosol provision system of  claim 1 . 
     
     
         14 . A consumable unit for use with an aerosol provision system, the unit comprising a projecting first portion and a recessed second portion, wherein the projecting first portion is of a conforming shape to the recessed second portion. 
     
     
         15 . A consumable unit according to  claim 14 , wherein the unit comprises aerosol generating medium arranged in the recessed second portion. 
     
     
         16 . A consumable unit according to  claim 15 , wherein the unit comprises at least two portions of aerosol generating medium arranged in the recessed second portion. 
     
     
         17 . A method of providing an aerosol, comprising:
 providing a housing having a mouthpiece, the mouthpiece having an air outlet; and,   providing a consumable unit contained within the housing, the consumable unit comprising:
 a source of aerosol generating medium; and, 
 an airflow channel wall forming an airflow channel that passes the source of aerosol generating medium and terminates in the vicinity of the air outlet of the housing, 
   passing air through the airflow channel within the airflow channel wall;   passing air over the source of aerosol generating medium; and,   passing air through the air outlet of the housing.