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 left-side view thereof; FIG. 5 is a right-side view thereof; FIG. 6 is a top view thereof; FIG. 7 is a bottom view thereof; and, FIG. 8 is a cross-sectional view thereof, taken along line 8 - 8 in FIG. 2 . The broken lines illustrating portions of the air conditioner form no part of the claimed design.