Interchangeable Industrial Filters Concerts & Events the same class of hardware

the same class of hardware used by stage musicians and audio engineers

When sound enters the filter at normal levels (voices

the audiologist’s fitting and tuning

but with ventilation and pressure equalization

or selectively protect against impulse noise like gunshots

Interchangeable Industrial Filters Concerts & Events the same class of hardwareFilters are interchangeable in both the custom and OtoPro Impulse noncustom options. 26dB of attenuation from bass to treble for loud, continuous noises. The Industrial filters are designed to provide relatively flat attenuation to remove low frequency noise and to aid communication, then a progressive attenuation increase at approximately 4kHz to further dampen damaging high frequency sounds. These filters ensure the ear remains ventilated to