Our highest quality custom fitted lab manufactured mould with acoustic filters embedded into the pre-drilled canal for variable attenuation, available in 9 dB(A), 15dB(A) or 25dB(A) filters. Suitable for continuous noise environments eg- machinery, airplane, pit crew, concerts etc. Providing you with less attenuation (sound reduction) than a solid noise plug, to allow for greater … Continue reading Acoustic Filtered Noise Plug