The ornamental design for an inhalerdevice, as shown and described.
FIG. 1 is a top view thereof;
FIG. 2 is a front view thereof;
FIG. 3 is a back side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is an isometric view thereof.
The broken lines in FIGS. 1 and 6 are included for the purpose of illustrating a portion of the inhaler device that forms no part of the claimed design.