The ornamental design for a fruitdehydrator, as shown and described.
FIG. 1 is a side elevational view of a fruit dehydrator view thereof in the first position;
FIG. 2 is a front view of a fruit dehydrator;
FIG. 3 is a side view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is a back view of fruit dehydrator of my new design with the broken line being for illustrative purposes only and forming no part of the claimed design;
FIG. 6 is a top view of fruit dehydrator of my new design with the broken line being for illustrative purposes only and forming no part of the claimed design
FIG. 7 is a bottom view of fruit dehydrator of my new design with the broken line being for illustrative purposes only and forming no part of the claimed design; and,
FIG. 8 is a front elevational view thereof in the second position.