AIRBRUSH: miniature precision spray gun attached to an air compressor, can be used to create a smooth application of paint or graduations in value and color. An airbrush is a small spray gun capable of finer sprays. May be either Gravity Feed or Siphon Feed. A further division of spray guns is into standard types and HVLP (High Volume, Low Pressure) types. The HVLP type can be more efficient, as the paint spray is moving at a lower velocity and more paint actually sticks to the surface.