3M H10A PELTOR™ Optime™ 105 Earmuffs, Over-the-head, NRR 30, CSA Class AL
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- Effective hearing protection against noise exposure up to 105dBA.
- Double-shell technology boosts performance and noise blocking ability.
- High durability stainless steel headband resistant to both bending and warping.
- Noise Reduction Rating (NRR): 30, highest available rating in over-the-head style earmuffs.
- CSA Class: AL
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