Air quality monitoring system and method

An air quality monitoring system configured to detect an air quality metric for a plurality of volumetric regions, the system comprising:

• a multiplexor configured to receive a plurality of air samples from each of the plurality of volumetric regions, the multiplexor comprising a multiplexor housing having a base that defines a multiplexor sensor outlet and a purge outlet, and a cover that defines a plurality of multiplexor inlets in fluid communication with the plurality of volumetric regions;
• a sensor pack comprising:
• a sensor pack housing having a cover portion and a base portion defining an interior cavity therebetween, the base portion defining a sensor pack inlet in fluid communication with the multiplexor sensor outlet and a sensor pack outlet;
• a first plurality of sensors and a second plurality of sensors, wherein each of the respective sensors is configured to measure an air quality metric of a selected air sample;
• a substrate disposed between the first plurality of sensors and the second plurality of sensors, wherein the substrate defines an air channel therein that extends from the sensor pack inlet to the sensor pack outlet;
• a sensor airflow line collectively defined by the multiplexor and the sensor pack, the sensor airflow line configured to fluidly couple one of the multiplexor inlets, the multiplexor sensor outlet, the sensor pack inlet, the air channel, and the sensor pack outlet;
• and
• a controller in electrical communication with each of the multiplexor and the sensor pack, the controller configured to instruct the multiplexor to align the sensor airflow line with a selected multiplexor inlet that corresponds to a measured volumetric region.