1, noise requirements: noise exhaustion indicators meet the requirements of ISO3744.

2, noise decibel :≤68DB(within 7 meters).

3, the tank: the bottom tank, store 8 hours of oil

4, noise suppression material: standard 50mm fireproof sound absorption cotton.

5, static speaker material :2.0mm steel plate folding manufacturing.

6, silencer door: Configure sealing performance of magnetic silencer door.

Note: This series of boxes can be made according to customer demand rainproof cover, rainproof cover can be made of high-quality galvanized sheet or steel plate.