• Silicone tips contain a foam core for an effective seal and good noise reduction.Flexible band can be worn under the chin for use with hard hats.
• Ideal for intermittent hearing protection needs.
• Replacement tips available.
• Noise Reduction Rating (NRR)* 20 dB when the band is worn under-the-chin. 17 dB when the band is worn behind-the-head. 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.