3M Peltor are world leaders in personal protective equipment, our range includes helmet mounted hearing protection (clip to safety helmet) to SNR 27dB and SNR 34dB.
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The 3M Peltor Optime III ear defenders are a high performance passive hearing protector developed for extreme high noise working environments.
They feature a special double casing designed to help minimise resonance and an acoustic connection between the inner volume and the volume between the casings for low-frequency attenuation.
Mining and quarrying
SNR (single number rating): 34db / H = 40dB / M = 32dB / L = 22dB
CE approved to EN 352-1:1993
Features & Benefits
Helmet mounted - fits all the miners safety helmets we supply
Suitable for extremely noisy environments
Resonance effect minimised due to double casing technology
Cup design reduces moisture and heat build-up for added comfort
Soft, wide ear cushions for maximum comfort