The Sonis® range has been stylishly designed with a traffic light colour code for easy identification - from the green Sonis® 1 for low level noise moving through to the red Sonis® 3 for use in more extreme environments. Materials have been chosen for both performance and comfort for extended periods of use. 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 37dB SNR.
- Force the helmet adaptor applies and the cushion surface area work together to provide optimum cushion pressure and comfort
- Adjustable steel arms facilitate even distribution of pressure the wearer can tilt and adjust the position of the earcup for optimum comfort and fit
- Cushion materials have been carefully selected to generate a perfect seal
- Sealing rings are easy to replace
- Hygiene kits are available for each model
- 36dB SNR
- Attenuation: H = 37, M = 35, L = 26
- Red: high attenuation small cup 112 - 117dB
- Suitable for extreme industrial noise, aircraft, quarrying, paper mills and heavy engineering
This product has met the following criteria:
![](\assets\img\sustainability icons\sustainabilityIconP.png) | Sustainable Distribution & Packaging Award | - Manufactured in the UK or Ireland
- Country of origin has an Environmental Performance Index (EPI) greater than 60
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To find out more about our Sustainability Attributes, click here.