Stroller Fan

FIG. 1 is a front and right side perspective view of a stroller fan showing my new design; FIG. 2 is a rear and left side perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; FIG. 9 is a front and right side perspective view thereof, shown in an alternative state; and, FIG. 10 is a front and right side perspective view thereof, shown in an exploded state. The broken lines in the drawings depict the portions of the stroller fan that form no part of the claimed design.