Aerosol-generating system with air quality sensor

An aerosol-generating system, comprising:

• an aerosol-generating device comprising:
• a housing having a chamber configured to receive an aerosol-forming substrate,
• a heating assembly configured to heat the aerosol-forming substrate when the aerosol-forming substrate is received in the chamber, and
• a power supply housed in the housing;
• and
• a charging unit comprising:
• power transfer circuitry configured to transfer power to the power supply of the aerosol-generating device;
• an ambient air quality sensor arranged to sense a property of ambient air in a vicinity of the aerosol-generating system, the ambient air quality sensor being configured to sense one or more of:
• carbon monoxide, volatile organic compounds, carbon dioxide, fine particulate matter, nitrogen dioxide, dioxygen, pressure, and nicotine, and
• a controller connected to the ambient air quality sensor, configured to receive ambient air quality readings from the ambient air quality sensor and to output an ambient air quality signal based on one or more of the ambient air quality readings of the ambient air quality sensor.

An aerosol-generating device, comprising:

• a housing having a chamber configured to receive an aerosol-forming substrate, the chamber being arranged at a proximal end of the aerosol-generating device;
• and
• a heating assembly configured to heat the aerosol-forming substrate when the aerosol-forming substrate is received in the chamber;
• an ambient air quality sensor arranged to sense a property of ambient air in a vicinity of the device, the ambient air quality sensor being configured to sense one or more of:
• carbon monoxide, volatile organic compounds, carbon dioxide, fine particulate matter, nitrogen dioxide, dioxygen, pressure, and nicotine, and the ambient air quality sensor being further arranged at a distal end of the device, opposite the proximal end;
• and
• a controller connected to the ambient air quality sensor, configured to receive ambient air quality readings from the ambient air quality sensor and to output an ambient air quality signal based on one or more of the readings of the ambient air quality sensor,
• wherein the ambient air quality sensor is substantially isolated from the chamber of the aerosol-generating device,
• wherein the ambient air quality sensor is further arranged within the housing, and
• wherein the housing further comprises a first opening configured to enable ambient air to enter the housing to reach the ambient air quality sensor, and a second opening configured to enable ambient air to exit the housing, an airflow pathway being formed through the housing from the first opening, over the ambient air quality sensor, to the second opening.

A charging case for an aerosol-generating system, the charging case comprising:

• a housing comprising a chamber configured to receive an aerosol-generating device;
• power transfer circuitry configured to transfer power to a power supply of an aerosol-generating device when the aerosol-generating device is received in the chamber;
• an ambient air quality sensor arranged to sense a property of ambient air in a vicinity of the charging case, the ambient air quality sensor being configured to sense one or more of:
• carbon monoxide, volatile organic compounds, carbon dioxide, fine particulate matter, nitrogen dioxide, dioxygen, pressure, and nicotine;
• and
• a controller connected to the ambient air quality sensor, configured to receive ambient air quality readings from the ambient air quality sensor and to output an ambient air quality signal based on one or more of the readings of the ambient air quality sensor.