yeah, you can build a box to put the fan in. It would help. You will have to somthing about that noise. I run a 449CFM centri. fan and you can hear it through a bedroom door. I would hang my 1500cfm fan in box
dusto2k3 Reviewed by dusto2k3 on . air noise question I'm in the process of moving my growroom. We have a good location for the new one, the only problem is the proximity of a couple of open windows (on warm days) about 30 feet from the growroom. My question is concerning exhaust air noise. I'm going to be using a 1500 cfm fan to exhaust warm air through a window opening. The actual window frame itself is going to be boarded up and I'm making a wood box to surround the open window portion. The wood box will have a 12 inch hole cut in it to mount Rating: 5