No louder than a mower or blower running. But they do blow out alot of dust. The hose option adds significantly to the price and I dont think it has enough reach. Im in the market right now for one of the shred n vacs, either Stihl ($279) or Echo ($330). They are easy to handle and it just takes a little practice to avoid picking up extra crap. They do work great for that "every last leaf" manicured look. Capacity is too small for large areas but perfect for beds and patio areas.