For noise levels up to 101 dBA, these over-the-head earmuffs provide effective hearing protection.
– Stainless steel headband distributes weight for low-pressure fit.
– Earcup pivot points that tilt for optimum comfort and efficiency.
– Liquid/foam filled earmuff cushions.
– Color-coding for compliance sighting.
– Noise Reduction Rating (NRR)*: 27dB. CSA Class A.
*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.

Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 02138, Paper Sheet 346U, 2-3/4 in x 17-1/2 in 40 D-weight, 7000118368, 100/Carton
3M 86957, Paper Sheet 405U, 220 A-weight, 9 in x 11 in, 7100041320 
