3M-1100
NRR 29 dB Class A(L)
200 pair per box
Uncorded
3M Foam Ear Plug: NRR 29dB
NRR 29 dB Class A(L)
200 pair per box
Uncorded
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*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.