Airbrush makeup is applied in a different way than traditional makeup. Airbrush heads are used to spray tiny spots of liquid pigment onto the skin. This is mostly because you must purchase a separate instrument as well as a cartridge to use with it. Makeup artists must also learn how to operate this equipment, as there is a science to determining how much to spray. It is more hygienic to use airbrush makeup. Airbrush makeup is applied without the use of fingers, brushes, or sponges. This lowers the risk of contamination.