Abstract: A method and apparatus for desktop air conditioning provides conditioned air to individuals sitting at a desk. A raised floor air delivery system provides a plenum having conditioned air under the raised floor upon which the individual and their desk sit. Small ducts extend vertically up from the floor to the underneath side of the desk where they are connected to a desktop diffuser. The desktop diffuser directs air from the plenum generally horizontally across a top of the desk toward the chest and face of the individual. The desktop diffuser is low profile so as not to interfere with the surface of the desktop and its aesthetics.