The ornamental design for an airfreshenerdiffuser, as shown and described.
FIG. 1 is a right front perspective view of an air freshener diffuser;
FIG. 2 is a left rear bottom perspective view of the air freshener diffuser of FIG. 1;
FIG. 3 is a top plan view of the air freshener diffuser of FIG. 1;
FIG. 4 is a bottom plan view of the air freshener diffuser of FIG. 1;
FIG. 5 is right side elevational view of the air freshener diffuser of FIG. 1;
FIG. 6 is a left side elevational view of the air freshener diffuser of FIG. 1;
FIG. 7 is a front elevational view of the air freshener diffuser of FIG. 1; and,
FIG. 8 is a rear elevational view of the air freshener diffuser of FIG. 1.
The broken lines showing portions of the air freshener diffuser are included for the purpose of illustrating the portions of the article and form no part of the claimed design.