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The ornamental design for a welding helmet, as shown and described. |
FIG. 1 is a front elevational view of a welding helmet showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a top plan view thereof.
The headband shown in broken lines in FIGS. 3, 4 and 5 is for illustrative purposes only and forms no part of the claimed design.
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