Low pressure air spray guns are a type of spray gun used to apply a variety of coatings, such as paint, stain, varnish, sealant, and more. They are designed to work with a low pressure air supply, typically between 30 and 60 psi, to produce a finer, more consistent spray pattern. They are often used for detail and finishing work. Low pressure air spray guns are available in a variety of styles, including conventional, gravity fed, and high volume, low pressure (HVLP).