... and post processing technologies, our superfine fiber features in high filtering efficiency, and low resistance. *Performance: environment friendly ... stable anti corrosion, meet clients demand.*Used in primary, medium, high-efficiency filter, air purifier, and dust collector.*Models and ... MB50500.4> 95< 25F8ZF-MB85W851.3> 60< 6F5For medium and high efficiency filter, etc.ZF-MB85G851.2> 80< 10F6ZF- ...