3M™ Peltor™ Optime II has been developed for demanding noise-hazard environments and muffles even extremely low frequencies to a maximum degree.  The sealing rings are filled with a unique combination of liquid and foam. The result is an optimum seal with low contact pressure, which provides snug comfort even during long-time use. The sealing rings have ventilation channels and are covered with soft, patterned, hygienic foil. 3M™ Peltor™Optime II is a suitable choice for environments with substantial industrial noise or construction machinery, airports and agricultural work.
Frequency: 4000Hz
Mean Attenuation: 34,7 dB
Standard Deviation: 2,7 dB
Expected attenuation: 32,0 dB
Weight: 210 g
Color: olive