Filter hearing protection industry (DI)

Industrial noises have a tendency to be louder at higher frequencies; DEC’s range of DI filters have been designed to provide relatively flat attenuation to remove low frequency noise and to aid communication, then a progressive attenuation increase at approximately 4kHz to remove damaging high frequency sounds. DI Filter nsures the user has air constantly flowing into the ear, this ventilation minimises the occlusion effect and avoids irritation within the ear canal, maximising the user’s comfort.