Air Treatment Device

FIG. 1 is a top, front, right-hand side perspective view showing our new design;

FIG. 2 is a top, front, left-hand side perspective view thereof;

FIG. 3 is a right-side elevational view thereof, the left-hand elevational view being a mirror image thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines and areas within depict portions of the air treatment device that form no part of the claimed design.