Fans and other machinery can generate vibration that is conveyed through the ducting pipe. Vibration can increase damage to adjacent machinery, create unwanted ambient debris (dust) and excess noise. US Duct’s Vibration Dampeners are designed to reduce the transference of vibration. A vibration absorbent membrane is used between to ductwork connection ends. The dampener effectively absorbs vibration and prevents it from passing through to the other parts of the system.