I painted the cab of my truck in my portable garage and there was very little dust. Just wait till it warms up and it's not windy. Any dust can be wet sanded and buffed out. The key is in the prep of the truck. I washed mine the night before and spent considerable time blowing it off. It's been my experience that most of the dirt and dust comes from the vehicle itself Good luck

The crew that works on the \'42 --Sara, Hannah and Abby