... non-woven fabric is a new filter material made by the latest melt-blown tech, and post processing... ZF- melt blown non-woven ... efficiency, and low resistance. *Performance: environment friendly, non-toxic, non-smell, high efficiency, low resistance, white and light, ... , medium, high-efficiency filter, air purifier, and dust collector.*Models and ParametersModelBasic Weight g/m2Thickness(mm)Efficiency ...