In short, Airbrush Make Up is defined as applying makeup to the skin through an airbrush machine that sprays foundation and color onto the skin.   This is very different than the traditional way of applying makeup using brushes, sponges, and tools.   Depending on the air pressure of the machine, you can achieve a lighter to heavier application.  This process not only takes more time to apply, it also takes a lot more time cleaning the machine than it would with traditional brushes.