3M™ E-A-R™ Classic™ Earplugs 311-1101, Corded, Poly Bag; Legendary comfort meets industrial-grade protection—corded Classic™ foam earplugs with 29 dB NRR in hygienic poly bags.

The 3M™ E-A-R™ Classic™ Earplugs 311-1101 are the industry’s original foam earplugs, trusted for decades to deliver consistent hearing protection in high-noise environments. Made from proprietary slow-recovery foam, these cylindrical earplugs conform to the ear canal for a secure acoustic seal, helping reduce exposure to hazardous noise.

The corded design improves handling and retention, making them ideal for shift workers, visitors, and high-movement zones. Packaged in individual poly bags, they support hygienic distribution and reduce contamination risks. With a Noise Reduction Rating (NRR) of 29 dB, these earplugs are suitable for use in manufacturing, oil & gas, pharmaceuticals, transportation, and maintenance operations.

Moisture-resistant and electrically insulated, the Classic™ earplugs maintain comfort even in humid conditions. They are compatible with the 3M™ E-A-Rfit™ Dual-Ear Validation System, allowing for fit testing and compliance assurance. Each case contains 2,000 corded pairs, making them ideal for large-scale deployment.