Portable Air Conditioner

FIG. 1 is a perspective view of a portable 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 view thereof; FIG. 5 is a right view thereof; FIG. 6 is a top view thereof; FIG. 7 is a bottom view thereof; and, FIG. 8 is another perspective view thereof. The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.