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. Compatible with our full range of Evolution® Safety Helmets.
- SNR 31
- Medium attenuation small compact cup 107-112dB
- Substantial industrial noise
- Construction & Agricultural machinery
- Roadworks, Forestry & Engineering
- Hygienic
- Colour Coding for easy selection