Portable Fan

FIG. 1 is a front perspective view of a portable fan, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view of thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures are for the purposes of illustrating portions of the portable fan, which form no part of the claimed design.