I claim the ornamental design for a blowing apparatus, as shown and described.
FIG. 1 is a rear perspective view of the blowing apparatus;
FIG. 2 is a rear view of the blowing apparatus shown in FIG. 1;
FIG. 3 is a front view of the blowing apparatus shown in FIG. 1;
FIG. 4 is a right side view of the blowing apparatus shown in FIG. 1;
FIG. 5 is a left side view of the blowing apparatus shown in FIG. 1;
FIG. 6 is a top view of the blowing apparatus shown in FIG. 1; and,
FIG. 7 is a bottom view of the blowing apparatus shown in FIG. 1.
The broken lines showings of the blowing apparatus are included for the purpose of illustrating portions of the article and form no part of the claimed design. Any surface of the design not shown, including interior surfaces, also forms no part of the claimed design.