Air conditioner

FIG. 1 is a front perspective view of an air conditioner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front perspective view thereof as shown in another configuration.

The broken lines are for environmental purposes only and form no part of the claimed design.