3M Combat Arms 4.1 Hear-Through Earplugs
- Earplug with a filter that offers situational awareness, and provides increasing amount of peak noise reduction as sound levels increase above 110 dB
- Rocker switch is marked with ‘3M’ and ‘CAE’ for easy switching between Closed Mode and Open Mode
- In Closed Mode the earplug acts as a conventional earplug offering protection against steady state and peak impulse noise
- Offers high attenuation against peak impulse noise- can be used up to 160dB peak
Please note: these ear plugs are only in stock in size Large.