3M 90716H3 Corded Earplugs — NRR 25 13 gauge This is the protection class

This is the protection class covered by the ANSI/ISEA 138 impact standard

(5) ANSI/ASSE Z88

and transmission line operations

so you still follow a written change schedule for those

3M 90716H3 Corded Earplugs — NRR 25 13 gauge This is the protection classEDITORIAL REVIEW: 4. 5 5WC Safety Review 3M 90716H3 Corded Earplugs Best For: corded reusable flanged hearing protection at NRR 25 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 25 dB the cord earns its keep on jobs where dropped plugs get lost. Editorial assessment by Steven Eaton, WC Safety editor. Scoring reflects