Transparent Noise Attenuator is constructed from ‘Low to mid frequency micro-perforated panels’ together with transparent solid panels and/or metal frame based on duct acoustics theory. Transparent Noise Attenuators having inlet and outlet to allow ventilation and light transmission while the noise is attenuated when passing through the sound absorption splitters comprising of the ‘Low to mid frequency micro-perforated panels’.

Transparent Noise Attenuators can be installed with openable window to effectively reduce traffic noise nuisance while allowing ventilation of natural air, hence saving energy consumption of air-conditioning.