Description
3M™ E-A-R™ Classic™ earplugs set the standard in hearing protection as the world’s first foam earplugs.
464 has a Noise Reduction Rating (NRR) of 29 dB. CSA Class AL
1328 has a Noise Reduction Rating (NRR) of 33 dB. CSA Class AL
1330 earplugs are slightly smaller in diameter for a comfortable fit in smaller ear canals
1328 earplugs are slightly longer than regular Classic™ earplugs to fit deeper into the ear canal
Flame-resistant & moisture-resistant
Test compatible with 3M™ E-A-Rfit™ Validation System
Constructed from slow-recovery foam, these low-pressure earplugs are uniquely moisture-resistant
