We claim the ornamental design for an air purifier for automobile, as shown and described.
FIG. 1 is a perspective view of an air purifier for automobile showing the new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left-side elevation view thereof;
FIG. 5 is a right-side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view showing a state of use thereof.
The broken lines represent portions of the air purifier for automobile that form no part of the claimed design. The broken lines on the upper display part in FIG. 8 are for environment purpose only and form no part of the claimed design.