FIG. 1 is a perspective view from front of a diffusing apparatus of active substances of my new design;
FIG. 2 is a perspective view from thereof from behind;
FIG. 3 is a perspective view thereof from below;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a bottom view thereof; and,
FIG. 9 is a rear view thereof.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.