Measuring indoor air quality for a heating, ventilation, and air conditioning system

An air quality measuring method, comprising:

• receiving a first airflow at a first inlet of a first chamber of a first housing;
• outputting a first portion of the first airflow at a first outlet of the first chamber of the first housing;
• outputting a second portion of the first airflow at a second outlet of the first chamber of the first housing;
• receiving the first portion of the first airflow at a second inlet of a second chamber of the first housing;
• sensing the first portion of the first airflow using a first sensor disposed within the second chamber;
• receiving the second portion of the first airflow at a third inlet of a third chamber of the first housing;
• sensing the second portion of the first airflow using a second sensor disposed within the third chamber;
• outputting the second portion of the first airflow at a third outlet of the third chamber;
• receiving the second portion of the first airflow at a fourth inlet of a fourth chamber of the first housing;
• sensing the second portion of the first airflow using a third sensor disposed within the fourth chamber;
• and
• outputting the second portion of the first airflow at a fourth outlet of the fourth chamber.

An air quality measuring device, comprising:

• a first housing comprising:
• a first chamber comprising:
• a first inlet configured to receive a first airflow;
• a first outlet configured to receive a first portion of the first airflow;
• and
• a second outlet configured to receive a second portion of the first airflow;
• a second chamber comprising:
• a second inlet configured to receive the first portion of the first airflow;
• and
• a first sensor disposed within the second chamber, wherein the first sensor is configured to sense the first portion of the first airflow;
• a third chamber comprising:
• a third inlet configured to receive the second portion of the first airflow;
• a third outlet to output the second portion of the first airflow;
• and
• a second sensor disposed within the third chamber, wherein the second sensor is configured to sense the second portion of the first airflow;
• and
• a fourth chamber comprising:
• a fourth inlet configured to receive the second portion of the first airflow;
• a fourth outlet configured to output the second portion of the first airflow;
• and
• a third sensor disposed within the fourth chamber, wherein the third sensor is configured to sense the second portion of the first airflow;
• and
• a second housing coupled to the first housing, comprising:
• a fifth chamber comprising:
• a fifth inlet configured to receive a second airflow;
• a fifth outlet configured to output a first portion of the second airflow that corresponds with the first airflow to the first housing;
• a sixth inlet configured to receive the second portion of the first airflow from the first housing;
• and
• a sixth outlet configured to output the second portion of the first airflow and a second portion of the second airflow.