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3M™ E-A-R™ Arc Plug™ Earplugs
Only Hear-Through™ earplug design that allows workers to hear conversation, signals and other critical sounds clearly. If an arc flash occurs, calibrated noise filter activates immediately to suppress noise to a lower level without delay, helping to reduce risk of hearing damage and concussive disorientation. Second side (red) offers protection against continuous hazardous noises. Includes plastic chain and case. Material successfully tested for ARC exposures of category 2 and higher, ASTM F1959-2005 modified.