Combat Arms Earplugs 4.1

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3M Combat Arms Earplugs 4.1

The 3M Combat Arms Re-usable Earplugs (CAE) Version 4.1 are designed for insertion into the ear canal to help reduce exposure to hazardous noise including steady state and peak noise from weapons fire, for example. This product features a special acoustical filter that lets lower level sound through with relatively little noise reduction for greater situational awareness, and provides increasing amount of peak noise reduction as sound levels increases above 110 dB. This is called the Open Mode. When used in the Closed Mode the product acts as a conventional earplug offering protection against steady state and peak impulse noise. The Open Mode is activated when the rocker switch featuring ‘CAE’ is pressed and the Closed Mode is activated when the rocker switch featuring ‘3M’ is pressed.


  • Specially designed soft retainer helps ensure the earplug remains seated inside the ear canal.
  • Rocker assembly featuring the patented mechanical filter for protection against high level of peak impulse noise
  • Rocker switch is marked with ‘3M’ and ‘CAE’ to easy switching between Closed Mode and Open Mode.
  • Made from soft and durable material
  • Available in three sizes for best individual fit
  • Offers high attenuation against peak impulse noise- can be used up to 160dB peak
  • Easy to wash and clean
  • Supplied in a durable storage case featuring a convenient metal chain.
  • All three sizes supplied with a soft polyester cord as standard




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