3M 1110 Metal Detectable Corded Earplugs Review

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Reviewed by Steven Eaton, WC Safety Editorial

The 3M 1110 Metal Detectable Corded Earplugs is a ear plugs from 3M, listed on Amazon. This review restates what the product page documents, places it in its hearing protection lane, and points to the ranked guides for the head-to-head field.

What the Product Page Documents

Published July 16, 2026 · Last updated July 27, 2026

The 3M 1110 Metal Detectable Corded (SKU: 1110) is a metal detectable earplug rated NRR 29 dB . Designed specifically for food processing, pharmaceutical manufacturing, and industrial environments where product contamination is a critical concern, these earplugs contain detectable components that can be identified by metal detection systems and X-ray equipment if a plug is accidentally introduced into a production line. They provide high attenuation under ANSI S3.19. Browse our full Metal Detectable Ear Plugs collection to compare options, or check current Amazon pricing: 3M 1110 Metal Detectable Corded on Amazon .

Standard foam or silicone earplugs are invisible to metal detectors and X-ray systems used in food production lines. If a plug falls into product — during an inspection or a shift change — it can contaminate an entire batch. Metal detectable earplugs are manufactured with ferrous particles, barium sulfate, or other detectable materials embedded in the foam or silicone so that any piece, including fragments from a torn or cut plug, registers on detection equipment. Many food safety programs (BRC, SQF, FSSC 22000, IFS) mandate the use of detectable personal protective equipment in food contact areas. The 3M 1110 Metal Detectable Corded meets these requirements while providing NRR 29 dB hearing protection for workers in noisy processing environments. See our full Metal Detectable Ear Plugs collection corded ear plugs disposable ear plugs full hearing protection range ear muffs electronic ear muffs high visibility ear plugs 3M E-A-Rsoft Metal Detectable NRR 32 for more options.

Metal detectable PPE requirements are driven by HACCP (Hazard Analysis and Critical Control Points) principles and food safety certification schemes. Under a HACCP plan, physical contamination from foreign bodies — including ear protection — is a recognized hazard. Using detectable earplugs ensures that if contamination occurs, it can be caught at a downstream CCP (Critical Control Point) before the product ships. Color-coding (typically blue for food environments) is a complementary visual-detection method, but metal detection is the primary technical control. The 3M 1110 Metal Detectable Corded is blue or a similarly distinct color that contrasts with most food products, supporting both visual and electronic detection.

Where It Earns Its Slot

Where it earns its slot: The 3M 1110 Metal Detectable Corded (SKU: 1110) is a metal detectable earplug rated NRR 29 dB . Designed specifically for food processing, pharmaceutical manufacturing, and industrial environments where product contamina. The rest of this review holds the listing to exactly that brief — limits, alternatives, and the ranked guides included.

Honest Limits

Its limits are the category's: protection exists only while the seal does, and label ratings are laboratory numbers. Plan the NRR 29 label at roughly 11 dB of field reduction under OSHA's subtract-7-and-halve estimate, and let your measured exposure — not the box — decide whether it is enough. Inspect and maintain per the maker's guidance; a degraded protector fails silently.

Pros and Cons

Alternatives in the Same Lane

• Howard Leight Laser Lite LL-1 Cordless Earplugs — NRR 32
• Howard Leight Maximum Max-1 Cordless Earplugs — NRR 33
• Howard Leight Quiet QD1 Cordless Earplugs, NRR 26 (Reusable
• Howard Leight Maximum Lite Cordless Earplugs, LPF-1 NRR 30 (
• Howard Leight X-TREME XTR-1 NRR 32 ear plugs (Uncorded, Disp
• Howard Leight TrustFit Pod Earplugs, NRR 28 Cordless Push-In
• Howard Leight FirmFit FF-1 Earplugs, NRR 30 Cordless Foam (F
• Howard Leight Multi Max MM-1 Cordless Earplugs — NRR 31
• 3M PELTOR Optime 105 H10A Ear Muffs - NRR 30 Over-the-Head H

Hearing Protection Guides

• Best Ear Plugs for Construction
• Best Ear Muffs for Construction
• When Do You Need Hearing Protection?
• Best Noise-Canceling Headsets
• Construction Site PPE Guide

Browse by Category

• Hearing Protection
• Ear Muffs
• Foam Ear Plugs
• Corded Ear Plugs
• Shooting Hearing Protection
• PPE Care & Accessories

Frequently Asked Questions

General questions about ratings, OSHA limits and fit are answered in the Best Ear Plugs for Construction guide.

The Bottom Line

Rated 4.5/5 on documented spec, configuration, and value. The 3M 1110 Metal Detectable Corded Earplugs does the job its listing describes — the guides above tell you whether it's the right pick against the field.

Common questions

Is dual protection ever required?

When the derated exposure still clears 85 dBA: doubling up typically adds roughly 5 dB over the higher-rated device, which is how the loudest industrial work is actually covered. Measure first — dual protection is a numbers decision, not a comfort one.

Why buy the corded version?

Retention, not attenuation: the cord keeps the pair off the floor between exposures — a hygiene rule in food and pharma work and a plain cost-saver elsewhere. Route it clear of rotating equipment; where cords snag on the job itself, uncorded is the correct variant.

Why a detectable plug in food plants?

The plug carries a detectable element (and a high-visibility color) so a lost plug can be found by line metal detectors before it reaches product — a food- and pharma-line control. Attenuation is unchanged; detectability is contamination insurance, not hearing protection.

What does the 3M 1110 Metal Detectable Corded Earplugs listing actually document?

The 3M 1110 Metal Detectable Corded (SKU: 1110) is a metal detectable earplug rated NRR 29 dB . Designed specifically for food processing, pharmaceutical manufacturing, and industrial environments where product contamination is a critical concern, these earplugs contain detectable components that ca…

What are the alternatives to the 3M 1110 Metal Detectable Corded Earplugs?

The sibling ear plugs options linked in this review, ranked head-to-head in the hearing protection guides below — start with the buyer's guides for the field view.

Sources. Requirements referenced here come from OSHA 29 CFR 1910 and the NIOSH recommendations. Where a consensus standard governs, the ANSI document is named in the text.

Related reference

Neighbouring references on this site: 3m 1110 foam earplugs nrr 30 200 pairs, best metal detectable ear plugs, and highest nrr ear plugs (2026): 7 best nrr 33 picks ranked.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. Standards language is taken from the regulation text directly, and ratings are reported as the manufacturer publishes them. We run no laboratory and perform no testing of our own. Where published sources disagree, we say so and plan on the conservative figure rather than the flattering one.

Our methodology

Figures come from the regulation and the published specification, in that order. Derated numbers are calculated, not estimated. Nothing here is presented as a measured result, because we measure nothing.

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers and regulators publish, with the gaps in that record marked. Last reviewed August 2026.