FIG. 1 is a front perspective view of a scent diffuser according to our design;
FIG. 2 is a front elevation view thereof, the back, right and left elevation views being identical thereto;
FIG. 3 is a top elevation view thereof; and,
FIG. 4 is a bottom elevation view thereof.
Broken lines are for environmental purposes only and form no part of the claimed design. Symbolic break lines having a jagged element show that no particular length of the portion is claimed, such lines and any portion of the article between such lines form no part of the claimed design. In FIGS. 1 and 2, wherein a wood inlay is generally shown, the specific wood grain pattern depicted in these figures is for illustrative purposes only.