Air treatment system

FIG. 1 is a perspective view of the air treatment system of the new design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being identical thereto;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The claimed portions of the air treatment system are shaded. FIGS. 1-6 may show features of the air treatment system in phantom lines. FIGS. 1-6 show features of the air treatment system in phantom lines. Further, all phantom lines bounding a shaded portion of the design form the boundary of the design, with the bounding phantom lines forming no part of the claimed design.