The ornamental design for an airfreshenercontainer, as shown and described.
FIG. 1 is a perspective view of my new design for an air freshener container;
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 top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines shown in the figures are for the purpose of illustrating portions of the air freshener container and form no part of the claimed design.