AOOKMIYA Portable Airless Sprayer Lithium Battery Professional High-pressure Paint Spraying Machine Painting Tool for Furniture SprayingTips for using sprayer A gun distance The distance between the nozzle of the spray gun and the surface of the object to be coated is called the gun distance, and the gun distance is preferably 30 0 cm. If the gun distance is too small, the spraying pressure is too large, the recoil force is also large, and the phenomenon of uneven coating is prone to occur, and the spray width (fan width) is small, so that the part of the object to be coated is