3M E-A-R Classic Corded Foam Earplugs | NRR 29 dB | Box of 200
The 3M E-A-R Classic is one of the most recognizable earplug designs in industrial hearing conservation — a slow-recovery PVC foam that rolls down easily and expands to a comfortable, consistent seal. This corded version has an attached cord for workers who move between loud and quiet areas and need plugs to stay accessible around the neck between uses. NRR 29 dB in a box of 200 pairs.
Pro Fit Guide: How to Get the Full NRR 29 Protection
Most users only get about 50% of the rated protection because they insert earplugs incorrectly. Use the "Roll, Pull, Hold" method to ensure OSHA compliance and maximum silence.
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1. The Roll: With clean hands, roll the entire earplug into the narrowest possible crease-free cylinder. Do not squeeze it into a ball; roll it into a long, thin "snake."
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2. The Pull: Reach over your head with your opposite hand and pull the top of your ear up and back. This straightens your ear canal, creating a clear path for the plug.
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3. The Hold: Insert the rolled plug well into your ear canal. Hold it in place with your finger for 30–40 seconds while the foam expands. If you don't hold it, the plug will "push" itself out before it can create a seal.
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4. The Acoustic Check: Once fitted, cup your hands over your ears and release. If the earplugs are inserted correctly, you should notice very little difference in the sound level when you cover them.
Expert Tip for B2B Managers: If your team complains that "the plugs don't stay in," it is almost always a fitting issue, not a product defect. Sharing this guide with your crew can lower your PPE waste by 15-20%.
Key Features:
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NRR 29 dB Protection – Reduces hazardous noise from machinery and tools
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Slow-Recovery PVC Foam – Expands gently for a custom, low-pressure fit
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Breakaway Safety Cord – Prevents snagging in industrial environments
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Soft & Durable Polymer Foam – Maintains comfort, fit, and recovery characteristics
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Bright Yellow Color – Ensures easy visibility and compliance checks
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Individually Poly-Bagged – Clean and hygienic for single use
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Box of 200 Pairs – Bulk packaging ideal for workplaces and shooting ranges
- E-A-Rfit Validation System Compatible.
Application
General manufacturing, warehousing, and construction environments where workers move between noisy and quiet zones throughout a shift and need earplugs to stay accessible.
Buying Guide: Corded vs. Uncorded E-A-R Classic
The corded and uncorded E-A-R Classic use identical foam and NRR. Choose corded for workers who remove plugs frequently to communicate and need them to stay accessible without searching pockets. Choose uncorded for tasks near rotating machinery where cord entanglement is a hazard, or for workers who prefer a cleaner setup without a dangling cord.
FAQ - E-A-R Classic Earplugs Model 311-1101
1. Why are 3M E-A-R Classic earplugs rectangular instead of tapered? The unique cylindrical shape is designed to provide a custom fit. The proprietary slow-recovery foam exerts lower pressure inside the ear canal than tapered plugs, making them more comfortable for 8–12 hour shifts.
2. Are these earplugs moisture-resistant? Yes. Unlike standard foam plugs that absorb sweat and expand too quickly, the 3M E-A-R Classic is moisture-resistant. This makes them the "Golden Standard" for high-humidity environments like foundries, paper mills, and outdoor construction.
3. What is the NRR rating for the corded version? The 3M E-A-R Classic Corded Earplugs carry an NRR of 29 dB. This provides significant protection for most industrial noise levels while still allowing for essential communication.
4. Are these earplugs flame-resistant? Yes, the PVC foam used in the Classic series is flame-resistant. This is a critical safety feature for workers in welding, metal fabrication, or environments where sparks are present.
5. How many pairs come in a standard industrial box? For B2B efficiency, these are sold in boxes of 200 pairs. Each pair is individually poly-bagged to ensure hygiene and OSHA-compliant distribution at the job site.
6.Is the NRR the same as the uncorded version?
Yes — same foam formula and NRR 29 dB rating; the cord does not affect attenuation performance.
