Just a word of caution:
Depending on the compressor system, you could find the air is full of moisture. This could be a real issue if there is water in the system as it can cause the wood to swell. If you have access to the compressor's tank, pressure regulator and water separators, I would check them for water BEFORE you blow off the sanding dust that might be there. I used to be a compressor repair tech and have seen how a tank can get a lot of water in it just through the humidity in the air that is forced out under pressure