Synthetic Fiber Pocket Filter use for Pre-filtration in air conditioning system Made from synthetic fiber and micro fiber materials for pocket filters in gradual technology. It conforms to European DIN53438-F1 . Filter media is composited of high quality synthetic fibers made by melt-blown adhesive technology. High frequency welding is adopted in the side seam of the cloth bag to increase the structural stiffness, ensure that the filter layer will not fall off when the air flow is suddenly opened or stopped, avoid the generation of secondary dust, and greatly improve the comprehensive performance of the cloth bag. Equipped with thin air separation bag structure, in line with the standard V-shaped structure, can maximize the stability of air flow, make full use of filtration medium, to ensure the best filtration effect. Small resistance, large effective filtration area