This allows the user to control the amount of paint that comes out of the spray gun. The paint flow rate can also be adjusted during painting. Special oil-free design prevents the conveying medium from being contaminated. The air compressor uses triggers to manage paint volume and airflow. When the trigger is pressed, air passes through the gun. When you pull the trigger back, the paint begins to bleed. The more times you pull the trigger, the more paint is delivered. Moreover, this function can also extend the working life of the compressor and save energy. When the spray gun stops working it automatically stops and starts working again when you use the spray gun. It becomes much quieter when using the spray gun. This spray gun is compatible with a wide range of paints and is suitable for furniture, fences, walls, cupboards and DIY home improvement projects, meeting all your painting needs, Manufacturer: GFJryET