Using high-quality raw materials from both domestic and international sources, the filter paper has high stiffness, high tensile strength, resistance to oil and water penetration, fine and evenly distributed fibers, high efficiency, uniform wind speed, and low resistance; Overall beautiful, high strength, and double-sided protection in place; The overall foam sealing strip or liquid tank jelly glue seal, due to its integral molding, has no splicing gaps, resulting in better sealing effect.

Using an imported Dual WIN paper folding machine, single-sided horizontal gluing ensures precise shaping of filter paper, accurate molding, reasonable structure, and lower resistance; The processing process is standardized, with emphasis on process control. Before leaving the factory, each high-efficiency filter undergoes leakage testing to ensure that its efficiency, air volume, resistance, and leakage rate are all qualified before it is allowed to leave the factory.