Tower fan

[0001]FIG. 1 is a front right perspective view of a tower fan showing our new design;

[0002]FIG. 2 is rear left perspective view thereof;

[0003]FIG. 3 is a front view thereof;

[0004]FIG. 4 is a rear view thereof;

[0005]FIG. 5 is a left side view thereof;

[0006]FIG. 6 is a right side view thereof;

[0007]FIG. 7 is a top view thereof;

[0008]FIG. 8 is a bottom view thereof;

[0009]FIG. 9 is an enlarged view of the portion circled and labeled 9 in FIG. 1; and,

[0010]FIG. 10 is an enlarged view of the portion circled and labeled 10 in FIG. 2.

[0011]The dash-dash broken lines in the drawings depict portions of the tower fan that form no part of the claimed design. The dot-dash broken lines represent the boundary of the enlarged portion and form no part of the claimed design.