Perfluor folded filter element belongs to newly developed high-tech product. The product is completely made of fluorides with strong chemical compatibility. It is characterized by high filtration precision and high flux. High-temperature welding technology is adopted in the product without adhesive and media loss, thereby minimizing influence of precipitates on filtration liquid. The product is produced in factory in line with requirements of ISO9001 quality management system, thereby ensuring product quality stability and long-term consistency. Deionized water in line with electronic grade is used in the product production process for flushing. 100% integrity test should be conducted before the products are left from the factory. The product can be widely used in filtration and purification of chemicals in economic industry. Features: