| CPC F24F 11/64 (2018.01) [F24F 2110/60 (2018.01); F24F 2130/40 (2018.01)] | 20 Claims |

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9. One or more non-transitory computer storage media encoded with instructions that, when executed by one or more computers, cause the one or more computers to perform operations comprising:
obtaining first sensor data from a camera that is configured to monitor an area of a property;
detecting, in the sensor data, a car that enters or leaves the property;
in response to detecting the car that enters or leaves the property, determining, using an air quality sensor, at least one of an airborne particle count in air in the area of the property or levels of chemical components in the air in the area of the property;
determining that at least one of the airborne particle count or the levels of chemical components satisfies an air quality criterion; and
in response to a determination that the air quality criterion is satisfied, activating an air quality device.
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