3M™ E-A-R™ Classic™ earplugs packaged in convenient refill bottles to fit your one Touch™ dispenser 391-1000. The world`s first foam earplugs and still the most widely used cylindrical earplug today. Packaged in convenient refill bottles to fit your one Touch™ dispenser. Flame resistant and moisture resistant. Noise reduction rating (NRR) - 29 dB CSA class AL. Test compatible with 3M™ E-A-Rfit™ validation system. The NRR may overestimate the hearing protection provided during typical use. 3M™ recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M™ is leading the advancement of hearing Conservation™.

E-A-R™ Earplugs, Roll Down, Series: Classic™ One Touch™, Uncorded, 29 dB Noise Reduction Rating, Cylindrical, Regular, Yellow Plug, PVC Plug, CSA Class AL Specifications Met, Disposable Disposable/Reusable