Moldex 6420 Rockets Corded Earplugs — NRR 27 niosh-approved Brand 3M Model / SKU

Brand 3M Model / SKU 2291 Filter Class P100 particulate filter Added Relief None Connection 3M bayonet Protection Type Advanced particulate filtration Gas/Vapor Cartridge Replacement No Compatible Systems Compatible 3M reusable respirators using standard bayonet connection Replacement Replace when damaged

but in the black shell preferred by security

and moisture-wicking performance fabric keeps the wearer drier

It carries an end-of-service-life indicator (ESLI) for mercury

Compare in best half-mask respirators

Moldex 6420 Rockets Corded Earplugs — NRR 27 niosh-approved Brand 3M Model / SKUEDITORIAL REVIEW: 4. 5 5WC Safety Review Moldex 6420 Rockets Corded Earplugs Best For: corded reusable flanged hearing protection at NRR 27 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 reusable flanged plug at NRR 27 dB the cord earns its keep on jobs where dropped plugs get lost. Editorial assessment by Steven Eaton, WC Safety editor. Scoring