... corrosion 4.Environment friendly ZF melt-blown non-woven fabric is a new filter material made by the latest melt-blown tech ... corrosion, meet clients demand.*Used in primary, medium, high-efficiency filter, air purifier, and dust collector.*Models and ParametersModelBasic Weight g ... 3> 98< 60F9ZF-MB110W1101.5> 98< 100H10For sub-high efficiency filter, etc.ZF-MB110G1101.4> 99< 110H11ZF-MB120W1201.6> 99< ...