Multi-level authorization for an aerosol-generating device

An aerosol-generating system, comprising:

• an aerosol-generating device configured to generate an aerosol from an aerosol-forming substrate;
• an image acquisition sensor configured to capture at least one image of a user of the aerosol-generating device;
• an acoustic sensor configured to detect a sound generated based on a respiration of the user;
• and
• at least one processor configured to control, based on the at least one image of the user and the detected sound, at least one of:
• an access of the user to the aerosol-generating device,
• an amount of a substance generated from the aerosol-forming substrate, and
• an amount aerosol generated from the aerosol-forming substrate.

A method, comprising:

• capturing, by an image acquisition sensor, at least one image of a user;
• detecting, by an acoustic sensor, a sound generated based on a respiration of the user;
• and
• controlling, based on the at least one image of the user and the detected sound, at least one of:
• an access of the user to an aerosol-generating device,
• an amount of a substance generated from an aerosol-forming substrate, and
• an amount of aerosol generated from an aerosol-forming substrate.