23 dB Noise Reduction Rating
The oversized ear cushions and adjustable headband on these muffs make for a very comfortable fit.
The fact that they can collapse to fit in your jacket pocket is an added benefit.
Noise reduction rating 23 decibels*
Lightweight and comfortable
Tested in accordance with ANSI Standard S3.19-1974
* Note that the NRR may overestimate the hearing protection provided during typical use.
3M recommends reducing the advertised NRR by 50% for estimating the actual amount of noise reduction provided.