Product Description Reducing noise levels from 33-34 dB, model dependant, tested to EN 352:2020, CE Approved, EN 352-1:1993 Double casing technology minimises resonance effect Large space inside the cups helps minimise heat and moisture build-up. Wide, comfortable foam sealing rings provide optimum seal and ideal comfort, even during long periods of use. Extremely noisy environments, such as airports, power stations, marine engine rooms and print works
