For attaching to hard hat helmets, these ear defenders have an SNR of 31, making them suitable for applications with substantial industrial noise such as construction, road works, forestry and engineering.
They have been developed in collaboration with a leader UK acoustic engineering facility. They give the wearer comfort through the force of the helmet adaptor and the cushion surface areas that work together to balance pressure and comfort. Conforms to the standard EN 352.
- Conforms to EN 352-3
- SNR 31
- Adjustable Steel Arms