22dB Synthetic elastomer material Recommended for use in those jobs where there is exposure to noise, heat, or humidity.
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Features of the 3M Reusable Earplug - 22 dB - Synthetic elastomer material - 3M Reusable Earplugs are recommended for use in workplaces where there is exposure to noise, heat, or humidity. - 3M™ 1270 Corded Earplugs are reusable, made with hypoallergenic materials, and provide effective and hygienic protection for the worker who wears them. They are also quick and easy to clean.