3M™ E-A-R™ Hi Fi™ Earplugs Hearing Conservation 410-3019, 48 Ea/Case
Acoustical design reduces noise level across all frequencies without distortion or muffling.
∙ Proprietary, premolded, triple-flange earplug design inserts easily.
∙ Noise Reduction Rating (NRR)*: 12 dB CSA Class AL
*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™."