My dust shoe gets at least 99% of the dust, and what it misses is heavier chips. My router is the cleanest power tool in my shop. However, there's plenty of dust from the other tools. What I did on my control box, is make a plywood "ring" to mount a Fram automotive air filter over the intake fans. I bought the smallest and cheapest one I could find, about $6. It's the square type, It's a very soft rubber that easily seals tight. It works great.