Drywall dust is very fine and can easily accumulate in the air. To clean up drywall dust, use a small vacuum to remove it from the air before it settles on surfaces. To clean off larger drywall dust particles, first, use a wet mop or sponge to wipe the surface with warm water. Next, using a stiff-bristled brush, gently scrub away any remaining debris. If you have access to compressed air, turn on your filter's blower and blow out all of the loose material collected in your work area. Finally, make sure to close all doors and windows as much as possible while cleaning up drywall dust so that you don't bring any more into your home or office space.