3M H7A Peltor Optime 101 Series Safety Earmuffs NRR 27 DB 1 Unit/ EM_ PSD_
3M Peltor Optime 101 H7A Over-the-Head Earmuff. For noise levels up to 101 dBA. Stainless steel headband distributes weight for low-pressure fit. Noise Reduction Rating (NRR)*: 27 dB. CSA Class A.