We designs Reverberation Rooms to make sure about sound power level of noise sources, transmission loss of partitions, insertion loss of silencers, response characteristics of microphones, and random incidence absorption coefficients of materials . Reverberation Rooms are used for high-intensity noise-level fatigue testing of aircraft, space vehicles, and other heavy equipment with fully satisfy reverberation requirements and also meet specific interior acoustic sound levels and other environmental requirements as well . In addition, rooms are designed to provide appropriate working spaces, sizes and types of doors, lighting and electrical systems, climate controls, as well as RF shielding appropriate to the work intended. All these elements are assembled within an engineered modular structural framework, to assure the overall integrity of the Reverberation Room. With the Envirotech Systems Component System, virtually any size room can be created.