The Ventüer AL-100W louvre system is a slimline acoustic attenuator ideal for situations where space is restricted and high levels of sound absorption are not required. It comes with an extruded aluminium two stage weather-stop profile to the front of the louvre, and blades which are filled with high-density mineral wool with the rear faces perforated to enable maximum sound absorption. Bird mesh, insect mesh or dust filters can also be integrated as required.