Hairdryer

FIG. 1 is a perspective view showing a hairdryer design; FIG. 2 is a front elevational view thereof; FIG. 3 is a rear elevational view thereof; FIG. 4 is a right side elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof. The portions of the hairdryer shown in broken lines are included for the purpose of illustrating unclaimed portions of the hairdryer and form no part of the claimed design.