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3M Peltor Optime NRR 27 101 Ear Muffs

Brand: 3M Mfg#: H7A
Product#: 121H7A
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3M™ Peltor™ Optime™ 101 over-the-head earmuffs feature a stainless steel headband for consistent force and effective hearing protection.


  • Earcup pivot points that tilt for optimum comfort and efficiency
  • Stainless steel headband distributes weight for low-pressure fit
  • 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided
  • Color-coding for compliance sighting
  • The NRR may overestimate the hearing protection provided during typical use
  • 3M is leading the advancement of hearing conservation
  • For noise levels up to 101 dBA, these over-the-head earmuffs provide effective hearing protection.
  • Liquid/foam filled earmuff cushions


  • Brand: 3M
  • Product Line: Peltor Optime
  • Color: Black/Green
  • Standards: ANSI S3.19-1974, CSA Certified
  • Material: ABS
  • Noise Reduction Rate (NRR): 27 dB
  • Style: Over-the-Head