Floor fan

FIG. 1 is a perspective view of a floor fan, 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 plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the floor fan that form no part of the claimed design. Unshaded surfaces adjacent to broken lines form no part of the claimed design.