{"product_id":"3m-peltor-optime-105-earmuffs","title":"3M Peltor Optime 105 Over-the-Head Earmuffs, H10A – NRR 30 dB Industrial Hearing Protection","description":"\u003cp\u003eThe 3M Peltor Optime 105 Over-the-Head Earmuffs (Model H10A) represent the highest tier of passive hearing protection in the 3M Peltor Optime series, delivering a Noise Reduction Rating (NRR) of 30 dB as rated per ANSI S3.19-1974. These earmuffs are engineered for use in the most demanding high-noise environments where eight-hour time-weighted average (TWA) exposures reach up to 105 dBA — a specification that makes them appropriate for heavy industrial, construction, and military-grade applications.\u003c\/p\u003e\n\u003cp\u003eThe Optime 105's hallmark feature is its double-shell earcup technology, in which two nested cups are connected by a foam inner layer to dramatically improve attenuation across the full frequency spectrum, including challenging low-frequency noise sources such as heavy machinery, generators, and explosives. The over-the-head steel headband provides a stable, pressure-balanced seal with broad-spectrum foam cushions. Durable ABS construction withstands the rigors of daily industrial use. Compatible with helmet-attachment and behind-the-head variants for use with hard hats. Tested to ANSI S12.6-1997 (R2002) Method B, which provides a field-realistic attenuation estimate.\u003c\/p\u003e\n\u003cp\u003eGovernment use cases include DOD and military firing range operations, Army Corps of Engineers and Navy construction battalion (Seabees) field operations, airport maintenance and flight-line operations for transportation agencies, heavy equipment and compactor operations in public works departments, and industrial maintenance shops in federal manufacturing facilities and government-operated correctional facilities. Hearing conservation programs under OSHA 29 CFR 1910.95 require engineering controls and appropriate hearing protection when TWA exposures exceed 85 dBA — the Optime 105 provides a substantial engineering and administrative control margin.\u003c\/p\u003e\n\u003cp\u003eProspect Industrial Supplies LLC (UEI: MA5HJB5E1ZR5 | CAGE: 9WTY5 | DLA CAGE: 9WTY501) supplies ANSI-rated hearing protection to DOD installations, federal agencies, and public works departments. Available in single-unit and case quantities for institutional hearing conservation programs. Compliant with OSHA 29 CFR 1910.95 Hearing Conservation Standard requirements.\u003c\/p\u003e","brand":"Prospect Industrial Supplies LLC","offers":[{"title":"1 Unit","offer_id":48386296054015,"sku":"PIS-3MOPT105-1PK","price":36.0,"currency_code":"USD","in_stock":true},{"title":"10 Units","offer_id":48386296086783,"sku":"PIS-3MOPT105-10PK","price":312.0,"currency_code":"USD","in_stock":true},{"title":"25 Units","offer_id":48386296119551,"sku":"PIS-3MOPT105-25PK","price":733.0,"currency_code":"USD","in_stock":true},{"title":"50 Units","offer_id":48386296152319,"sku":"PIS-3MOPT105-50PK","price":1439.0,"currency_code":"USD","in_stock":true},{"title":"100 Units","offer_id":48386296185087,"sku":"PIS-3MOPT105-100PK","price":2822.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/3961\/3439\/files\/ddac02f5b2ea0e57a5c91bf58fc023ac.jpg?v=1777513324","url":"https:\/\/prospectindustrialsupplies.com\/products\/3m-peltor-optime-105-earmuffs","provider":"Prospect Industrial Supplies","version":"1.0","type":"link"}