Air conditioner

FIG. 1 is a perspective view of front, left and top view of air conditioner showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is an alternative perspective view showing an operation status thereof.

A rear view is omitted because it is plain and unornamental and forms no part of the subject matter of the claimed design.