SNR 30 dB For noisy environments and low frequencies Compatible with helmets and glasses Noise Reduction Rating (NRR) *: 29 dB. CSA Class AL
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3M Uncorded Disposable Earplug Features - SNR 30 dB - For noisy environments and low frequencies - Compatible with helmets and glasses - Noise Reduction Rating (NRR) *: 29 dB. CSA Class AL - 3M Uncorded Disposable Earplug - Conical shape with perfectly smooth surface - 3M Uncorded Disposable Earplug 1100 is made of polyurethane foam for greater attenuation. Soft, uncorded foam earplugs conform to the unique shape of each ear for excellent hearing protection and comfort. Comfortable for a wide range of ear canal sizes. Test compatible with 3M EAR-FIT Validation System Suggested Applications for 3M Uncorded Disposable Earplug 3M Uncorded Disposable Earplug ideal for noise protection in a wide range of workplace applications including metal processing, construction, chemical and pharmaceutical manufacturing, light engineering, automotive, textile manufacturing, printing and woodworking.