The ornamental design for a hairfibersprayer, as shown and described.
FIG. 1 is an isometric view of the hair fiber sprayer;
FIG. 2 is a side view of the hair fiber sprayer;
FIG. 3 is a bottom view of the hair fiber sprayer;
FIG. 4 is a top view of the hair fiber sprayer;
FIG. 5 is a first end view of the hair fiber sprayer; and,
FIG. 6 is a second end view of the hair fiber sprayer.
The broken lines shown along the bottom of the sprayer and tip of the nozzle illustrate portions of the article and form no part of the claimed design.