Quote Originally Posted by GetThisOrDie
You can also build a box and install the fan inside the box and hang the box. Even put rubber matting on the inside of the box to kill sound waves!
I used the rubber matting lightly to prevent vibration but I didn't want to over do it causing a lack of adequate air circulation around the motor. Guess muting sound waves was an added benefit but then I didn't try it without the padding to listen to the difference! I'm too lazy. But hey the house never burned down.

(Probably have the building inspectors and contractors out there shitting their collective britches about now).