The ornamental design for a respiratory apparatus, as shown and described.
The file of this patent contains at least one figure executed in color. Copies of this patent with color figures will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a right side perspective view of a respiratory apparatus according to our new design;
FIG. 2 is a left side perspective view of the respiratory apparatus of FIG. 1;
FIG. 3 is a right side elevation view of the respiratory apparatus of FIG. 1;
FIG. 4 is a front elevation view of the respiratory apparatus of FIG. 1;
FIG. 5 is a rear elevation view of the respiratory apparatus of FIG. 1;
FIG. 6 is a bottom plan view of the respiratory apparatus of FIG. 1; and,
FIG. 7 is a top plan view of the respiratory apparatus of FIG. 1.
The broken lines shown in the drawings illustrate portions of the respiratory apparatus that form no part of the claimed design.