Soft foam caps block the entrance to the earcanal. Band is worn under the chin.
Ideal for intermittent protection needs.
Noise Reduction Rating (NRR)* 17 dB. CSA Class BL.
*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™.