3M E-A-Rsoft SuperFit 311-1254 Corded Earplugs — NRR 33 Optime 95 HDPE shell approximately 15% lighter

HDPE shell approximately 15% lighter than PC-ABS

For black at heavy gauge

and acid handling and transfer where HCl and HF vapor are the confirmed hazard

Passive ESLI for mercury saturation

3M E-A-Rsoft SuperFit 311-1254 Corded Earplugs — NRR 33 Optime 95 HDPE shell approximately 15% lighterEDITORIAL REVIEW: 3. 2 5WC Safety Review 3M E A Rsoft SuperFit 311 1254 Corded Earplugs Best For: corded single use foam hearing protection at NRR 33 dB with a retention cord. Not For: non noise hazards, or noise that earplugs alone can't bring under ~85 dBA (add earmuffs). Bottom Line: a solid corded single use foam plug at NRR 33 dB the cord earns its keep on jobs where dropped plugs get lost. Editorial assessment by Steven Eaton, WC Safety editor.