NÚT TAI CHỐNG ỒN 3M 1100

3M™ 1100 uncorded foam earplugs feature soft, hypoallergenic foam and a tapered design to fit comfortably in the earcanal. Benefits Smooth, dirt resistant surface for hygiene Comfortable for a wide range of earcanal sizes Test compatible with 3M™ E-A-Rfit™ Validation System Noise Reduction Rating (NRR)*: 29 dB. CSA Class AL

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