Air quality sensor

[0001]FIG. 1 is a top, front, right perspective view of an air quality sensor in accordance with our design;

[0002]FIG. 2 is a front elevational view thereof;

[0003]FIG. 3 is a top plan view thereof;

[0004]FIG. 4 is a right side elevational view thereof;

[0005]FIG. 5 is a left side elevational view thereof;

[0006]FIG. 6 is a bottom elevational view thereof; and,

[0007]FIG. 7 is a rear elevational view thereof.

[0008]The broken lines represent portions of the air quality sensor that form no part of the claimed design. The area enclosed by the dash-dot-dot line in FIG. 7 forms no part of the claimed design.