FIG. 1 is a top perspective view of an embodiment of a fan comprising a new, original and ornamental design;
FIG. 2 is a bottom perspective view of the fan shown in FIG. 1;
FIG. 3 is a top plan view of the fan shown in FIG. 1;
FIG. 4 is a bottom plan view of the fan shown in FIG. 2;
FIG. 5 is a top side elevational view of the fan as viewed in FIG. 3;
FIG. 6 is a bottom side elevational view of the fan as viewed in FIG. 3;
FIG. 7 is a right side elevational view of the fan as viewed in FIG. 3;
FIG. 8 is a left side elevational view of the fan as viewed in FIG. 3;
FIG. 9 is a top perspective view of a shroud member shown separately from the fan of FIG. 1 for clarity of disclosure;
FIG. 10 is a bottom perspective view of the fan shroud shown in FIG. 9;
FIG. 11 is a top plan view of the shroud shown in FIG. 9;
FIG. 12 is a bottom plan view of the shroud shown in FIG. 10;
FIG. 13 is a top side elevational view of the shroud as viewed in FIG. 11;
FIG. 14 is a bottom side elevational view of the shroud as viewed in FIG. 11;
FIG. 15 is a right side elevational view of the shroud as viewed in FIG. 11; and,
FIG. 16 is a left side elevational view of the shroud as viewed in FIG. 11.
The broken lines in the Figures depict parts of the fan that form no part of the claimed design.