Evaporative Air Cooler

FIG. 1 is a perspective view of an evaporative air cooler showing my new design; FIG. 2 is another perspective view thereof; FIG. 3 is a front elevation view thereof; FIG. 4 is a back elevation view thereof; FIG. 5 is a left side elevation view thereof; FIG. 6 is a right side elevation view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; and, FIG. 9 is an enlarged view of the encircled portion labeled “ 9 ” in FIG. 4 . The equal-length broken lines depict portions of the evaporative air cooler that form no part of the claimed design. The dash-dot lines in FIG. 4 and FIG. 9 illustrate the boundaries of the enlarged view indicators and form no part of the claimed design.