Type: SE-20A , refrigerated R-22, R-407c,R134a Electric: 110, 220v / 50, 60 hz / 1 phase ... , so the compressed air must be purified. Our air-cooling type refrigerate dryer can solve this trouble, offer you with 2 ... compressed air in different condition. 1-2m3 Refrigerated Dryer (New Type, 3-16 bar )