Jul 24, 2018 · When choosing the texture of syringe filters, we need to consider pore diameter, chemical resistance( if can resist all carrier oils and solvents), oil-based or water-based solution, and etc. Here are the pore diameter of common syringe filters. Pore diameter: Nylon, PVDF, PTFE, MCE, CA, PP, PES: 0.22um, 0.45um Glass Fiber: 0.7um, 1.2um