Microfiltration is the best reverse current filtration model, and has a 0.1-3 micron porous structure. MF is generally utilized in removal of ultrahigh molecular weight compounds such as bacteria and oils during low pressure processes, in treatment of chemical, pharmacologic, and alimentary solutions, and in waste water treatment.

Microfiltration is preferred, instead of cartridge and sand filters, in industrial water filtration, in suspended solid removal from industrial water, in suspended solid and BOD removal from the domestic waste water treatment facility output, in recycling of waste water, and in pre-treatment (reverse osmosis / nanofiltration) for membrane treatment.