Ducting properly improved noise levels
5/5
Very powerful although a bit noisy, I improved this by increasing hose diameter and adding insulation i started with 100mm hose as this fitted the wall vent 1.5m away straight to extractor using a reducer but found using 125mm 90 bend and 1.4m pipe then having reducer by wall worked a lot better.finally boxing in and packing with loft insulation.
Andy