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3m peltor h6a\v optime 95 over the head noise reduction earmuff, hearing protection, ear protectors, nrr 21db, ideal for machine shops and power tools - Walmart.com
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3M™ Peltor™ Optime™ 95 NRR 21 Low Profile Behind-the-Head Ear Muffs - 1706 - Northern Safety Co., Inc.
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