Air purifier filter

USD1072222SActive Publication Date: 2025-04-22LI JUAN

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[0001] FIG. 1 is a front, left and top perspective view of an air purifier filter in an unfolded state, showing my new design.

[0002] FIG. 2 is a rear, right and bottom perspective view thereof.

[0003] FIG. 3 is a front elevation view thereof.

[0004] FIG. 4 is a rear elevation view thereof.

[0005] FIG. 5 is a left side elevation view thereof.

[0006] FIG. 6 is a right side elevation view thereof.

[0007] FIG. 7 is a top plan view thereof.

[0008] FIG. 8 is a bottom plan view thereof; and,

[0009] FIG. 9 is another front, right and top perspective view of the air purifier filter of FIG. 1 shown in a folded state.

[0010] The dashed broken lines depict portions of the air purifier filter that form no part of the claimed design.

The ornamental design for an air purifier filter as shown and described.