spray gun high low pressure with low air pressure saves paint and protects the environment, good design of construction. Nozzle size: 1.4 high atomization with low air pressure saves paint and protects the environment, good design of construction. Better than 75% transfer efficiency with less than 10% psi output pressure, -------consumption cfm :12.3, air consumption: 6.0-11 cfm(170-300 Ltr/Min); feed type : gravity -----standard nozzle: 1.4mm, air inlet: g1/4" -----capacity of cup: 600ml, air pressure: 3-4 bar(45-60PSI).