Awesome fan. I spent time making sure the install was as mechanically sound as possible (used foam rubber gasket at drywall interface and one 45-deg bend on the 6 inch duct) and it's so quiet you can barely hear it running. Our electrician installed it easily.Very quiet and works well. Awesome Fan!! A ton of air movement and you almost can't hear it running. I purchased this fan to replace an old noisy bath fan that was badly undersized. Needless to say, I would recommend this purchase.