3M™ E-A-R™ Classic™ SuperFit™ 30 corded Earplugs 311-1126, in Poly Bag 2000 PR/Case
Another innovation from 3M E-A-R, the Classic SuperFit 30 has a built-in visual check - the red fitting ring. If the red ring is visible after insertion, the plug may not be providing optimal performance.
∙ Poly bag keeps each pair of earplugs available or accesible for re-use.
∙ Conforms to the shape of the earcanal to help create a comfortable, snug noise barrier
∙ Slow-recovery earplug foam is flame-resistant and moisture-resistant
∙ Noise Reduction Rating (NRR)* 30 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™."