Non-combustible aerosol delivery system

A non-combustible aerosol delivery system for filtering exhaled breath, the non-combustible aerosol delivery system comprising:

• a power source;
• a mouthpiece;
• a filter unit;
• a unit containing a vapor forming material;
• an inhalate airflow path adapted to convey vapor generated by the aerosol delivery system to a user during an inhalation, and
• an exhalate airflow path adapted to convey breath from the user to the filter unit during an exhalation into the aerosol delivery system;
• wherein the filter unit and the unit containing the vapor forming material together form a single assembly which is removable from the non-combustible aerosol delivery system;
• wherein:
• the inhalate airflow path and the exhalate airflow path are entirely distinct from each other;
• or
• the mouthpiece forms both a portion of the inhalate airflow path and a portion of the exhalate airflow path, and is configured to move between an inhalation position and an exhalation position, wherein in the inhalation position the mouthpiece is in fluid communication with a remainder of the inhalate airflow path and is not in fluid communication with a remainder of the exhalate airflow path, and wherein in the exhalation position the mouthpiece is not in fluid communication with the remainder of the inhalate airflow path and is in fluid communication with the remainder of the exhalate airflow path;
• or
• the non-combustible aerosol delivery system further comprises a diverter assembly, wherein the diverter assembly comprises a multi-flap valve, wherein flaps of the multi-flap valve have a thickness of no greater than 0.7 mm.