The world's first foam earplugs and are still one of the most widely used earplugs today. Classic™ Plus earplugs are slightly longer than regular E-A-R™ Classic™ earplugs to fit deeper into the ear canal and provide higher noise reduction. Slow recovery, low pressure foam fits snugly to create a noise barrier that helps protect hearing from loud sounds. The earplugs are both flame resistant and moisture resistant. Bright yellow color allows supervisors to conduct a quick visual hearing protection compliance check. Recommended applications include chipping, chiseling, drilling, furnace operations, grinding, heavy equipment operations, machining, pouring/casting, power fastening, riveting, sanding, sawing and welding and more. Test compatible with the 3M™ E-A-Rfit™ Validation System. CSA Class AL. Research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in earplug fit, earplug fitting skill, and motivation of the user. It is recommended that the NRR be reduced by 50% to better estimate typical workplace protection. Corded/Cordless: Uncorded; Shape: Cylinder; Material(s): PVC; Noise Reduction Rate (NRR): 33 dB.

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