3M Peltor Optime 98 H9A overthehead muff features added doubleshell earcup design two cups connected via a foam inner layer to reduce structural resonances to provide the maximum in noise reduction throughout the full range of low and high frequencies They also feature padded wide headbands with fourpoint steel suspension band to cushion head and distribute pressure for extra comfort Recommended for noise levels up to 98 dBA TWA •Liquid and foam filled cushions •NRR 25dB •Recommended for noise levels up to 98 dBA TWA •Over-the-head style •Padded wide headband with 4-point steel suspension band •Earcup pivot points for optimum comfort and efficiency The 3M products on this page must be used in accordance with OSHA regulations, and the user instructions, warnings and limitations accompanying each product.
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