3M™ Classic™ Plus Corded Earplugs 311-1105, in Poly Bag
The world's first foam earplugs and still the most widely used cylindrical earplug today.
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ITEM#
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311-1105
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MANUFACTURER
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3M
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Classic Plus are longer than Classic earplugs to fit deeper into the ear canal and provide a higher level of protection. Slow-recovery foam helps ensure comfort and minimize pressure. Bright yellow color provides a quick visual compliance check. Dermatologically safe foam is non-irritating, nonflammable, and moisture-resistant. NRR 33dB. ANSI S3.19-1974; CSA Class AL.