Make sure the compressor's output matches the pounds-per-square-inch requirements of the tool to be used. Check and change the oil regularly. After a day of use, empty the air tanks and drain any water build-up inside the tank through the drain tap at the bottom of the tank.
Always wear thick gardening gloves when handling broken glass, and use goggles if you have to break any glass. Carefully crisscross pieces of masking tape over a broken windowpane. Cover the glass with a heavy cloth, then tap with a hammer to break away the pieces from the window without splintering. Dispose if broken glass in newspaper.