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 flow of paint. This design enables artists to create fine lines or broad strokes with ease, making it popular for detailed work in fields like model painting, illustration, and makeup application. Unlike single-action airbrushes, which only control air flow, double-action airbrushes provide more versatility. This feature allows users to adjust the paint volume while maintaining consistent air pressure, resulting in smoother gradients and more intricate designs. Many professional artists prefer double-action airbrushes for their ability to produce high-quality results.