FIG. 1 is a front right perspective view from below of a fan according to the new design;
FIG. 2 is a rear left perspective view from below thereof;
FIG. 3 is a front right perspective view from above thereof;
FIG. 4 is a rear left perspective view from above thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a rear elevational view thereof;
FIG. 9 is top plan view thereof;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is an enlarged view of detail 11 in FIG. 1;
FIG. 12 is an enlarged view of detail 12 in FIG. 2;
FIG. 13 is an enlarged view of detail 13 in FIG. 3;
FIG. 14 is an enlarged view of detail 14 in FIG. 4;
FIG. 15 is an enlarged view of detail 15 in FIG. 5;
FIG. 16 is an enlarged view of detail 16 in FIG. 6;
FIG. 17 is an enlarged view of detail 17 in FIG. 7;
FIG. 18 is an enlarged view of detail 18 in FIG. 8;
FIG. 19 is an enlarged view of detail 19 in FIG. 9; and,
FIG. 20 is an enlarged view of detail 20 in FIG. 10.
The broken lines in the drawings illustrate portions of the fan that form no part of the claimed design.
The long dash-short dash lines in the drawings represent a boundary of the claimed design and form no part of the claimed design.
The dash-dot lines in the figures depict the boundaries of the enlargements that form no part of the claimed design.