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

1 . 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.

2 . The device of claim 1 , further comprising:

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.

3 . The device of claim 1 , wherein the first sensor is configured to measure a carbon dioxide level within the second chamber.

4 . The device of claim 1 , wherein the second sensor is configured to measure a particulate level within the third chamber.

5 . The device of claim 1 , wherein the third sensor is configured to measure a Total Volatile Organic Compound level within the fourth chamber.

6 . The device of claim 1 , wherein the first housing further comprises a fifth chamber comprising:

a side vent configured to provide a fluid path from the fifth chamber to an exterior of the first housing; and

an angled surface configured to provide a fluid path from one or more surfaces within the fifth chamber to the side vent.

7 . The device of claim 1 , wherein the third outlet comprises a fan configured to provide a flow rate of the second portion of the first airflow.

8 . 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.

9 . The method of claim 8 , further comprising:

receiving a second airflow at a fifth inlet of a fifth chamber of a second housing that is coupled to the first housing;

outputting at a fifth outlet of the fifth chamber a first portion of the second airflow that corresponds with the first airflow to the first housing;

receiving at a sixth inlet of the fifth chamber the second portion of the first airflow from the first housing; and

outputting at a sixth outlet the second portion of the first airflow and a second portion of the second airflow.

10 . The method of claim 8 , wherein sensing using the first sensor comprises measuring a carbon dioxide level within the second chamber.

11 . The method of claim 8 , wherein sensing using the second sensor comprises measuring a particulate level within the third chamber.

12 . The method of claim 8 , wherein sensing using the third sensor comprises measuring a Total Volatile Organic Compound level within the fourth chamber.

13 . The method of claim 8 , further comprising providing by an angled surface within a fifth chamber of the first housing a fluid path from one or more surfaces within the fifth chamber to a side vent, wherein the side vent is configured to provide a fluid path from the fifth chamber to an exterior of the first housing.

14 . The method of claim 8 , further comprising providing a flow rate of the second portion of the first airflow using a fan disposed within the third outlet.

15 . 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.

16 . The device of claim 15 , wherein the first sensor is configured to measure a carbon dioxide level within the second chamber.

17 . The device of claim 15 , wherein the second sensor is configured to measure a particulate level within the third chamber.

18 . The device of claim 15 , wherein the third sensor is configured to measure a Total Volatile Organic Compound level within the fourth chamber.

19 . The device of claim 15 , wherein the first housing further comprises a sixth chamber comprising:

a side vent configured to provide a fluid path from the sixth chamber to an exterior of the first housing; and

an angled surface configured to provide a fluid path from one or more surfaces within the sixth chamber to the side vent.

20 . The device of claim 15 , wherein the third outlet comprises a fan configured to provide a flow rate of the second portion of the first airflow.