- Behind the Head
- For noise levels up to 101 dBA
- Stainless steel band distributes weight for low-pressure fit.
- Noise Reduction Rating (NRRA Class A.)*: 26 dB
CSA Class AL
For noise levels up to 101 dBA, these behind-the-head earmuffs provide effective hearing protection.
– Stainless steel band 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)*: 26 dB. 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™.
Optime 101 Behind the Head H7B (26 dB)
20 × 12 × 7 cm