3M E-A-R Earmuffs 330-3002 combine excellent attenuation with comfortable durability. Provides a protective seal without excess pressure, while the pivoting ear cup connections help maintain the seal and proper alignment.
These earmuffs combines excellent attenuation with comfortable durability. When worn behind-the-head or under-the-chin position the NRR is 26 dB/CSA Class AL.
- Noise Reduction Rating (NRR)*: 25 dB. CSA Class B if worn over-the-head and 22 dB. CSA Class B/A if worn behind-the-head or under the chin
- Replaceable ear cushions and foam liners (3M Hygiene Kit 331-3010)
- Assembly, Cleaning, Demolition, Electrical, Facility Maintenance, Grinding,Machine Operations, Painting, Sanding, Welding