The Noise is controlled by providing Acoustic lining on walls & ceiling, all ordinary doors shutters are to be converted in to sound proof doors in DG Rooms Acoustic Treatment . The proper Air ventilation system is designed to allow the maximum aspiration and cooling airflow required so the engine does not overheat. Axial flow fan of required size & number provided for proper Air ventilation. Acoustic louvers, splitter & Insulated ducts are provided to suppress the noise where required.