Air filter
　　Air filter core is also called air filter cylinder, air filter, style and so on. It is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operation rooms and various precision operation rooms.
　　PP filter
　　PP filter core is also called PP melt jet filter core. Melt jet filter core is made of polypropylene ultra-fine fiber hot melt entanglement. The fiber randomly forms three-dimensional microporous structure in space. Filter element accuracy range 0.5-100 microns, its flux is the same precision peak chamber filter element more than 1.5 times, can be configured with different types of end cover joints, to meet the needs of various engineering installation.