16/2/2019 · How to chosee right syringe filters and filter membranes-- How to choose right syringe filters and filter membranes. 2. Here are the pore diameter of common syringe filters.--Here is the pore diameter of common syringe filters. 3. 0.22 um of PVDF, PTFE, MCE, PP are good for use--0.22 um PVDF, PTFE, MCE, PP are good for use.