{"product_id":"howard-leight-leightning-l1-shooting-earmuff-r-01524light-gray","title":"Howard Leight Leightning L1 Shooting Earmuff (R-01524),Light Gray","description":"\u003cdiv class=\"silo-desc\" style=\"color:#e0e0e0;font-family:sans-serif;max-width:900px\"\u003e\n  \u003caside style=\"background:#1a2433;border-left:4px solid #c8a84b;padding:14px 18px;border-radius:4px;margin-bottom:28px\"\u003e\n    \u003cp style=\"margin:0;font-size:0.95em\"\u003e\u003cstrong\u003eHoward Leight Leightning L1 — passive earmuff, NRR 25, ANSI S3.19 certified.\u003c\/strong\u003e Streamlined passive over-the-head design for industrial hearing protection programs. Lightweight, no batteries required, adjustable steel headband. Light gray finish for general manufacturing and construction use.\u003c\/p\u003e\n  \u003c\/aside\u003e\n  \u003ch2 style=\"color:#c8a84b;margin-top:0\"\u003eHoward Leight Leightning L1 Earmuffs — Specification Review\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eHoward Leight Leightning L1\u003c\/strong\u003e (R-01524) is a passive over-the-head earmuff with NRR 25, targeting industrial hearing conservation programs where a reliable, lightweight, no-battery hearing protector is the requirement. Unlike the electronic Impact Sport variant, the L1 attenuates all sound passively through its cup geometry and foam-filled cushion design — no electronics, no maintenance other than cushion replacement, no battery management for a fleet.\u003c\/p\u003e\n  \u003cp\u003eAt NRR 25, the L1 provides approximately 9 dB of real-world protection under OSHA's 50% derating formula, making it appropriate for environments with time-weighted average noise exposures up to approximately 99 dB. The adjustable steel headband accommodates a broad head size range and applies consistent cup pressure for reliable acoustic seal over a work shift.\u003c\/p\u003e\n  \u003ch2 style=\"color:#c8a84b\"\u003eNRR 25 — Protection Level at a Glance\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;margin-bottom:24px\"\u003e\n    \u003cthead\u003e\u003ctr style=\"background:#1a2433\"\u003e\n      \u003cth style=\"padding:8px 12px;text-align:left;border:1px solid #333;color:#c8a84b\"\u003eMetric\u003c\/th\u003e\n      \u003cth style=\"padding:8px 12px;text-align:left;border:1px solid #333;color:#c8a84b\"\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#111\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eNRR\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#1a2433\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eReal-world protection (OSHA derated)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003e~9 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#111\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eMax recommended TWA (derated)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003e~99 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#1a2433\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eANSI S3.19\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#111\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eBatteries\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eNone required\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#1a2433\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eHeadband\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333\"\u003eSteel, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003ch2 style=\"color:#c8a84b\"\u003ePassive vs Electronic for Industrial Use\u003c\/h2\u003e\n  \u003cp\u003eFor most manufacturing, construction, and industrial environments, passive earmuffs are the more practical specification. No batteries to manage across a fleet, no electronic components to fail, and consistent attenuation regardless of ambient conditions. The L1's NRR 25 covers the majority of industrial noise environments under OSHA's Action Level (85 dB) and PEL (90 dB) framework.\u003c\/p\u003e\n  \u003ch2 style=\"color:#c8a84b\"\u003eStrengths and Limitations\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eStrengths:\u003c\/strong\u003e NRR 25 ANSI S3.19 certified; no batteries required — simplified fleet management; lightweight design for full-shift comfort; steel headband provides durable, consistent cup pressure; low per-unit cost suitable for crew-scale purchasing.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eLimitations:\u003c\/strong\u003e passive attenuation reduces all sound equally — communication requires removing the earmuffs or using a hands-free communication system; NRR 25 may be insufficient for environments above 99 dB TWA without doubling; no ambient sound amplification for situational awareness.\u003c\/p\u003e\n  \u003ch2 style=\"color:#c8a84b\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003ch3 style=\"color:#e0e0e0\"\u003eHow much real-world protection does NRR 25 provide?\u003c\/h3\u003e\n  \u003cp\u003eUsing OSHA's 50% derating formula: (25 − 7) ÷ 2 = 9 dB of real-world attenuation. In an environment measuring 95 dB TWA, the L1 reduces effective exposure to approximately 86 dB — just above the 85 dB Action Level. For exposures above 99 dB TWA, consider a higher-NRR earmuff or doubling with foam earplugs.\u003c\/p\u003e\n  \u003ch3 style=\"color:#e0e0e0\"\u003eWhy choose passive over electronic for industrial work?\u003c\/h3\u003e\n  \u003cp\u003ePassive earmuffs require no batteries, have fewer components to maintain, and deliver consistent protection regardless of power state. For facilities running large PPE programs, passive earmuffs simplify inventory management — no battery tracking, no electronic failure diagnostics. Electronic options are appropriate when ambient awareness (speech, alarms, vehicle movement) is a safety requirement in the work environment.\u003c\/p\u003e\n  \u003ch3 style=\"color:#e0e0e0\"\u003eIs the L1 rated for OSHA compliance?\u003c\/h3\u003e\n  \u003cp\u003eYes. ANSI S3.19 certified with NRR 25. Apply the OSHA derating formula to determine if the L1 reduces your workers' noise exposure to within the permissible exposure limit (90 dB PEL) or action level (85 dB) for your specific environment. Document the NRR and derating calculation in your written hearing conservation program.\u003c\/p\u003e\n  \u003cp style=\"margin-top:32px;padding-top:16px;border-top:1px solid #333;font-size:0.9em\"\u003e\n    \u003cstrong\u003eRelated:\u003c\/strong\u003e\n    \u003ca href=\"\/collections\/hearing-protection\" style=\"color:#c8a84b\"\u003eAll Hearing Protection\u003c\/a\u003e  | \n    All Ear Muffs  | \n    NRR Guide\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howard Leight","offers":[{"title":"Honeywell Leightning L1 Shooting (R-01524),Light Gray","offer_id":44142504968280,"sku":"B001DRGL3O","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Honeywell Leightning L3 Shooting (R-03318)","offer_id":44142505001048,"sku":"B001DZX86O","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Honeywell Leightning L0F Folding Ultraslim Shooting (R-01523","offer_id":44142505033816,"sku":"B001BL04PS","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/41DcVdes69L._SL500.jpg?v=1779740274","url":"https:\/\/wcsafety.com\/products\/howard-leight-leightning-l1-shooting-earmuff-r-01524light-gray","provider":"WC Safety","version":"1.0","type":"link"}