{"product_id":"3m-1100-foam-ear-plugs-cordless-nrr-29","title":"3M 1100 Foam Ear Plugs Cordless NRR 29","description":"\u003c!-- Title: 3M 1100 Foam Ear Plugs Cordless NRR 29 | SKU: 1100 | ID: 8740153163864 --\u003e\n\n\u003cp\u003eFor industrial, construction, and manufacturing environments where noise exposure exceeds OSHA's 85 dB PEL threshold, the \u003cstrong\u003e3M 1100 Foam Ear Plugs Cordless NRR 29 (\u003cstrong\u003eSKU: 1100\u003c\/strong\u003e)\u003c\/strong\u003e provides NRR 29 dB hearing protection in a disposable foam earplug format engineered for all-day comfort. The Foam foam formula combines appropriate compression recovery with the soft tactile properties that allow workers to achieve a proper insertion depth without discomfort during extended wear — delivering the noise attenuation that prevents NIOSH-defined Noise-Induced Hearing Loss (NIHL) in occupational noise environments.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eNRR 29 dB Noise Reduction Rating — ANSI S3.19 rated hearing protection\u003c\/li\u003e\n  \u003cli\u003eUncorded design — independent earplug format for unrestricted movement\u003c\/li\u003e\n  \u003cli\u003eSoft slow-recovery foam — compresses for insertion, expands to fill ear canal geometry\u003c\/li\u003e\n  \u003cli\u003eDisposable single-use design — OSHA-compliant hygiene standard for hearing protection programs\u003c\/li\u003e\n  \u003cli\u003eComfortable tapered shape — minimal insertion pressure for all-day extended wear\u003c\/li\u003e\n  \u003cli\u003eBright high-visibility color — visual compliance verification at safety checkpoints\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/guides\/best-3m-full-face-respirator\" style=\"color:#4fc3f7;\"\u003eBrand: 3M\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eNIOSH\/ANSI S3.19 rated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDetailed Description\u003c\/h2\u003e\n\u003cp\u003eNoise-Induced Hearing Loss is the most common occupational illness in manufacturing and construction environments — and it is entirely preventable with consistent, properly fitted hearing protection. The 1100 Foam provides a NRR 29 dB noise reduction profile when worn correctly, attenuating the peak noise exposure from equipment operation, impact tools, and material handling to levels below OSHA's 8-hour average exposure limit of 90 dBA. For workers operating near particularly loud equipment — compressors, pneumatic tools, chippers — the 1100 provides the attenuation margin that keeps daily noise dose within safe exposure parameters.\u003c\/p\u003e\n\n\u003cp\u003eProper earplug insertion is the critical performance variable for disposable foam hearing protection. The foam formula of the 1100 is engineered to compress to a diameter small enough for insertion with rolled-down technique while providing sufficient recovery speed to expand and fill the ear canal within 30–60 seconds of insertion. A properly inserted earplug seals against the ear canal walls along the full contact length of the plug — this circumferential seal is what produces the rated NRR attenuation. Incomplete insertion, where only the tip enters the canal, produces substantially lower attenuation than rated and is the most common cause of noise dose overexposure despite \"wearing\" hearing protection.\u003c\/p\u003e\n\n\u003cp\u003eThe uncorded format provides complete freedom of movement without any physical connection between the two earplugs. This is preferred for continuous-wear applications where earplugs are inserted at the start of a shift and worn throughout without removal.\u003c\/p\u003e\n\n\u003cp\u003eThe disposable design of the 1100 supports the single-use hygiene standard that OSHA's hearing conservation program and most industrial health programs require. Reused foam earplugs accumulate earwax, sweat residue, and particulate contamination that degrades foam density, reduces compliance with ear canal geometry, and poses contamination risk in pharmaceutical, food processing, and cleanroom environments. Single-use distribution with adequate supply density at work area access points ensures workers can always access clean hearing protection without behavioral friction.\u003c\/p\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eManufacturing — equipment operators, assembly line workers in high-noise production environments\u003c\/li\u003e\n  \u003cli\u003eConstruction — pneumatic tool, compressor, and heavy equipment noise exposure management\u003c\/li\u003e\n  \u003cli\u003eWoodworking and finishing — router, planer, and belt sander noise attenuation\u003c\/li\u003e\n  \u003cli\u003eMetal fabrication — grinding, cutting, and press operations exceeding 85 dB TWA\u003c\/li\u003e\n  \u003cli\u003eMining and resource extraction — continuous high-noise environment hearing protection\u003c\/li\u003e\n  \u003cli\u003eAviation ground support — jet engine and turbine noise environments requiring high-attenuation protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;\"\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e1100\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProduct ID\u003c\/td\u003e\n\u003ctd\u003e8740153163864\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDisposable Foam Earplug\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNRR\u003c\/td\u003e\n\u003ctd\u003e29 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCord\u003c\/td\u003e\n\u003ctd\u003eUncorded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSlow-Recovery Polyurethane Foam\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eANSI S3.19, NIOSH Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e3M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eSingle-Use Disposable\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003eBox (multiple pairs)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/collections\/hearing-protection\"\u003eHearing Protection — Full Collection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/collections\/safety-glasses\"\u003eSafety Glasses — Eye Protection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/wcsafety.com\/collections\/disposable-respirators\"\u003eRespirators — Respiratory Protection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/wcsafety.com\/collections\/hand-protection\"\u003eWork Gloves — Hand Protection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/collections\/hard-hats\"\u003eHard Hats — Head Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdl\u003e\n  \u003cdt\u003eWhat does NRR 29 mean?\u003c\/dt\u003e\n  \u003cdd\u003eLaboratory-rated noise reduction of 29 dB under ideal fit conditions. NIOSH recommends a 50% derating factor for field estimates, giving approximately 15–20 dB of effective attenuation in typical workplace conditions.\u003c\/dd\u003e\n\n  \u003cdt\u003eHow do I correctly insert the 1100?\u003c\/dt\u003e\n  \u003cdd\u003eRoll the plug between clean fingers to compress it. Pull the ear upward-backward with the opposite hand to straighten the canal. Insert the compressed plug with a rotating motion until fully seated inside the canal. Hold for 30–60 seconds while foam expands. The entire plug body should be inside the canal opening when properly seated.\u003c\/dd\u003e\n\n  \u003cdt\u003eAre these single-use disposable?\u003c\/dt\u003e\n  \u003cdd\u003eYes. Single-use design ensures consistent foam compliance and hygiene for OSHA hearing conservation program compliance.\u003c\/dd\u003e\n\n  \u003cdt\u003eDo they meet OSHA requirements?\u003c\/dt\u003e\n  \u003cdd\u003eYes. ANSI S3.19 rated and NIOSH listed. Appropriate for environments up to 119 dBA with proper derating applied per OSHA 29 CFR 1910.95 guidelines.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":44003222126680,"sku":"1100","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/81d7ccN69nL.jpg?v=1776358935","url":"https:\/\/wcsafety.com\/products\/3m-1100-foam-ear-plugs-cordless-nrr-29","provider":"WC Safety","version":"1.0","type":"link"}