Interchangeable Industrial Filters Concerts & Events When sound enters the filter

When sound enters the filter at normal levels (voices

These filters ensure the ear remains ventilated to minimize the "boomy" quality of your own voice

The OtoPro Impulse is a non-custom filtered earplug built for shooting and hunting

Do not submerge the plugs in water

The filter unit is mechanical and does not require service

Interchangeable Industrial Filters Concerts & Events When sound enters the filterFilters 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