Surgical helmet

FIG. 1 is a top, front left-side perspective view of a surgical helmet;

FIG. 2 is a bottom left-side perspective view thereof;

FIG. 3 is a front right-side perspective view thereof;

FIG. 4 is a front-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a top-side view thereof;

FIG. 8 is a bottom-side view thereof; and,

FIG. 9 is a rear-side view thereof.

The broken lines immediately adjacent to the shaded areas depict the bounds of the claimed design, while all other broken lines are directed to environment. The broken lines form no part of the claimed design.