Humidifier

FIG. 1 is a front, right and top perspective view of a humidifier, showing my new design;

FIG. 2 is a rear, left and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of portion labeled “ 9 ” in FIG. 1 .

The evenly-dashed broken lines shown in the drawings illustrate portions of the humidifier that form no part of the claimed design. The dot-dash broken lines shown in the drawings define the boundary of the enlarged view and form no part of the claimed design.