An air sander is a common air tool often overlooked by most people. If you already have an air compressor to run your impact wrench, you may consider purchasing an air sander instead of an electric model. Your average off the shelf electric sander is fine for little home projects. But if you are really concerned about production and speed, an air sander will blow it away. These tools are also more rugged, versatile and lighter.
The main reason is the power source is your air compressor, not the little electric motor in the sander. This also makes them easier to fit into weird places and hold over your head to reach a ceiling. At the end of the day, an air sander is much kinder to your hands, while delivering more power. They also come in models that are both sanders and buffers. I really recommend one of these if you are a car or boat enthusiast. An air buffer will make quick work of a long wax job on your favorite ski boat. You can then turn around and use the same tool to sand down your kitchen cabinets for painting.
Air sanders are really versatile tools and a great addition to your air tools for your garage compressor. There are also orbital sanders, dual action sanders and palm grip sanders for any application you might run across. It may be time to take a second look at that air compressor stuffed in the garage. They can do a lot more than just fill up tires and run impact wrenches.