1.The filters are made of high-quality filtration materials and the filtration efficiency can be up to 99.5%.It has Low initial resistance and powerful filtration capacity make a better performance of motors

2.The filter paper adopts integral reinforced plastic structure between bubble point and filter peak, which efficiently increase the filtration area, meanwhile improve the filtration element's bursting strength and the filter's service life.

3.PU rubber products are made of high-quality materials and have the characters of good seal, anti-aging and excellent resistance to high and low temperature, which can keep the seal ring’s shape and good seal in use.

4.High-quality materials are used in the seal rings of PP plastic products and the PP frames. The PP frames that are made of reinforced plastic have high compressive strength, good toughness and anti-aging which ensure the filters' long service life and no deformation.