Ergodyne 8971 Skullerz Premium Full Brim Hard Hat — Class E T-Shirts Choose by your measured noise

Choose by your measured noise level - higher dBA exposure favors the X4A

Use our how to calculate NRR guide to match the rating to your dBA reading

for a standard Class 3 two-tone zipper vest

See our carbon monoxide exposure symptoms guide for what to watch for

Ergodyne 8971 Skullerz Premium Full Brim Hard Hat — Class E T-Shirts Choose by your measured noiseThe Ergodyne 8971 Skullerz Premium Full Brim Hard Hat is an ANSI ISEA Z89. 1 2014 Type I, Class E premium full brim hard hat the maximum electrical insulation rating in the non vented full brim configuration for utility construction, electrical trades, and outdoor industrial workers who require Class E electrical insulation (20,000V AC) alongside the all around brim protection appropriate for outdoor and overhead electrical work environments. The