Find single action and double action air brushes, plus airbrush kits and replacement parts at Nevada Fine Arts. Single action air brushes are the easiest to use while double action air brushes require a little more user know-how.
Single action air brushes have separate paint and air controls, so you don’t have to concentrate on pulling the trigger back to release more paint. Twist the knob to your desired paint flow, and it’ll stay there. The knob can’t be adjusted while air brushing, but keeping a steady paint flow is easy.
In a double action air brush, the trigger manages the paint volume and airflow. Push the trigger down for air to pass through the airbrush, and pull the trigger backward for paint to flow out. The amount of paint coming out of the air brush can easily be adjusted while painting — simply pull the trigger back further to release more paint.