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An acoustic connection between the inner volume and the volume between the casings in its turn provides low-frequency attenuation.
The 3M™ Peltor™ Optime™ III sealing rings are broad and filled with soft plastic foam for the best fit and low contact pressure, the earmuff stands for effective protection and highest comfort for the wearer.
The product is also available in a dielectric version without visible metal parts and in High Viz green for workers who need hearing protection and be extra visible.
Attenuation: Headband: SNR=35dB, H=40dB, M=32dB, L=23dB
Neckband: SNR=35dB, H=40dB, M=32dB, L=23dB
Helmet Attachment: SNR=34dB, H=40dB, M=32dB, L=22dB
Product code: H540A
Helmet attachment HY54 - Hygiene kit
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