If more than 15 to 20 dB of noise reduction are required, a total acoustic enclosure is needed.

Gresam provide acoustic enclosures where it is composed from modular boxes and combination of relatively high transmission loss and absorptive panels placed over noise sources including an acoustic louver and sound attenuators in order to allow for air circulation when needed. Preferably the machine itself should be vibration isolated from the floor and all its services. The enclosures can then rest directly on the floor without the risk of its structure being mechanically “driven”.