3M Personal Safety Division Arc™ Earplugs

Patented Hear-Through™ design allow workers to hear conversations, signals, or other critical sounds clearly, while protecting against damaging impulse noise from an arc flash.

• Insert the yellow end and it allows clear hearing
• Arc blast is instantly suppressed by a calibrated filter, reducing it to a safer level
• Filter reacts instantaneously to reduce or eliminate the risk of hearing damage or concussive disorientation
• Insert red end for steady-state 22dB protection from high-noise levels (heavy equipment, etc.)
• Comfortable triple-flange tips are based on the popular E-A-R(R) UltraFit(R) design
• Fast and easy, no-roll insertion
• Washable and reusable plugs include a plastic carrying case with dielectric chain
• Red end NRR 22dB; Yellow end NRR 0dB (level dependent); ANSI S3.19-1974; CSA Class AL