3M E-A-R Model 1000 Earmuffs 330-3001, Black / Maroon Color

3M earmuffs feature durable, lightweight construction of non-conductive, dielectric plastic that can be worn over-the-head, behind-the-neck or under-the-chin. Low-profile and lightweight earmuffs may be worn over-the-head, behind-the-head, or under-the-chin. Provides a protective seal without excess pressure while the pivoting earcup connections maintain the seal and proper alignment. Large earcup openings and soft, foam-filled cushions offer a snug, comfortable fit.

The durable, lightweight construction of non-conductive, dielectric plastic. – Noise Reduction Rating NRR 20 dB (CSA class B) when the band is worn over-the-head. NRR 22 dB (CSA Class A) when the band is worn under-the-chin. NRR 22 dB (CSA Class B) when the band is worn behind-the-head. 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. Large earcup openings and soft, foam-filled cushions offer a snug, comfortable fit. The durable, lightweight construction of non-conductive, dielectric plastic.,br> Noise Reduction Rating NRR 20 dB (CSA class B) when the band is worn over-the-head. NRR 22 dB (CSA Class A) when the band is worn under-the-chin. NRR 22 dB (CSA Class B) when the band is worn behind-the-head.