FIG. 1 is a front perspective view of an ornamental design for a hair dryer according to the present invention in an unfolded position;
FIG. 2 is a left side elevational view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 3 is a right side elevational view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 4 is a rear elevational view of the hair dryer of FIG. 1 in the unfolded position
FIG. 5 is a front elevational view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 6 is a top plan view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 7 is a bottom plan view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 8 is rear perspective view of the hair dryer of FIG. 1 in the unfolded position;
FIG. 9 is a front perspective view of the hair dryer according to the present invention in a folded position;
FIG. 10 is a left side elevational view of the hair dryer of FIG. 9 in the folded position;
FIG. 11 is a right side elevational view of the hair dryer of FIG. 9 in the folded position;
FIG. 12 is a rear elevational view of the hair dryer of FIG. 9 in the folded position;
FIG. 13 is a front elevational view of the hair dryer of FIG. 9 in the folded position;
FIG. 14 is a top plan view of the hair dryer of FIG. 9 in the folded position;
FIG. 15 is a bottom plan view of the hair dryer of FIG. 9 in the folded position; and,
FIG. 16 is rear perspective view of the hair dryer of FIG. 9 in the folded position.
The broken lines shown in FIGS. 1-16 are for the purpose of illustrating environmental structure and form no part of the claimed design.