| As mentioned by brickeyee, you can get by without producing much dust at all by knocking down the surface between coats with a knife rather than sanding. Not only is there no dust, the knife only knocks off the high spots and levels the surface rather than producing waves and dips like sanding often does. Check out the site below for details on this method. |
Here is a link that might be useful: Taping & Finishing Drywall
