(1)terminal air dry filter--realizing refrigeration through a semiconductor cooler, it is a piece of equipment that provides purifying technologies for drying compressed air of a small flow 5scfm/min to 21scfm/min at the terminal where the air is used. (2)high efficiency -- by way of freeze drying, it accomplish quite high dryness and high cost-effective ratio as well. This is a technology that satisfies the requirements in pneumatic operation in most cases and a technology that is most widely utilized. (3) advanced utility model patent--the utility model patent cooler allows adequate cooling of air in a small volume and allows air-water separation to lower the humidity of the compressed air. (4) high reliability and low cost--it needs no refrigerant and features low noise, long life and low cost of maintenance, as there is mo mechanical moving parts except the fan. (5)compactness--ultra-small volume, easy installation and use, and simple operation. Power:240w,working pressure:0.8mpa,air flow:5scfm,pressure dew point:less than 10 degree celsius. Dimension:230*161*285mm, weight:7kg.