A double-action airbrush is a type of airbrush that allows for greater control over the paint application. It operates with two actions: pressing down on the trigger releases air, while pulling back on the trigger controls the paint flow. This design enables artists to create fine lines or broad strokes with ease, making it popular for detailed work in fields like illustration and model painting. These airbrushes are commonly used in various applications, including makeup, automotive painting, and crafting. The versatility of a double-action airbrush makes it a preferred choice for both beginners and experienced artists seeking precision in their work.