The Sonis® range of ear defenders have been designed by the JSP R&D team. Working with a leading UK acoustic engineering research facility they have developed an ear defender range that peaks at an unbeaten 37 SNR.
The Sonis® range of ear defenders have been designed by the JSP R&D team. Working with a leading UK acoustic engineering research facility they have developed an ear defender range that peaks at an unbeaten 37 SNR.
The Sonis® range of ear defenders have been designed by the JSP R&D team. Working with a leading UK acoustic engineering research facility they have developed an ear defender range that peaks at an unbeaten 37 SNR.
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.
Recommended applications
Mining and quarrying
Power stations
Industrial operations
Cement manufacture
Airports
Engine rooms
Print shops
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