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J. J. Keller protects people and the businesses they run. You can trust our expertise across a wide range of subjects relating to labor, transportation, environmental, and worker safety. Our deep knowledge of federal and state agencies is built on a strong foundation of more than 100 editors and consultants and 70+ years of regulatory compliance experience.

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J. J. Keller protects people and the businesses they run. You can trust our expertise across a wide range of subjects relating to labor, transportation, environmental, and worker safety. Our deep knowledge of federal and state agencies is built on a strong foundation of more than 100 editors and consultants and 70+ years of regulatory compliance experience.

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  • Noise Reduction Rating (NRR) 28
  • Lightweight
  • Electrically insulated (dielectric) wire over-the-head headband models
  • Earcups tilt for optimum comfort and efficiency
  • Twin headband design helps reduce heat buildup with good fit and balance
  • Wire headband offers comfortable pressure during prolonged usage
  • Ear cushion foam technology for an effective acoustic seal and reliable protection
  • Spacer design on X3 model improves attenuation without excess bulk or weight
  • Manufacturer Item #: X3A
3M

Industry: Construction Safety, Workplace Safety / EH&S

Hearing Protection Type: Earmuffs

Noise Reduction Rating (NRR): 28dB