3M E-A-Rsoft® Yellow Neons 311-1250 Corded Foam Earplugs - NRR 33 dB

The 3M E-A-Rsoft Yellow Neons 311-1250 are corded foam earplugs with a Noise Reduction Rating (NRR) of 33 dB, providing the highest single-number rating available among standard foam earplug designs. The proprietary slow-recovery polyurethane foam compresses for easy roll-down insertion, then expands within the ear canal to form a comfortable, airtight seal that attenuates sustained workplace noise.

The yellow neon high-visibility color supports OSHA hearing-conservation program inspections, allowing supervisors to verify that crew members are wearing hearing protection from a distance. The corded design pairs the two earplugs with a flexible polymer cord, keeping plugs accessible during intermittent removal and reducing loss in industrial environments. Each pair is individually packaged for hygienic handling.

Common applications include construction sites, manufacturing floors, DOT roadside crews using small-engine equipment, airport ground operations, and any environment with sustained noise above the OSHA 90 dBA action level. Verify the NRR provides adequate attenuation for the specific exposure level of the work environment, and apply the OSHA 50% derating factor when calculating effective protection.