The ornamental design for a portablehygienestation, as shown and described.
FIG. 1 is a top isometric view of the portable hygiene station embodying my new design;
FIG. 2 is a front view of the portable hygiene station;
FIG. 3 is a back view of the portable hygiene station;
FIG. 4 is a right side view of the portable hygiene station;
FIG. 5 is a left side view of the portable hygiene station;
FIG. 6 is a top view of the portable hygiene station;
FIG. 7 is a bottom view of the portable hygiene station;
FIG. 8 is a bottom isometric view of the portable hygiene station; and,
FIG. 9 is an environmental view of the portable hygiene station.
The broken lines depicting portions of the portable hygiene station in the drawing are for illustrative purposes only and form no part of the claimed design.