Iranian Polymer Nano Membrane Company has started its activity in the field of production of microfiltration membranes with nanofiber technology since 2018, using specialized forces. Microfiltration is one of the membrane processes that is used to remove micrometer particles in sizes larger than 0.1 microns and generally the membranes used in this process have pore sizes larger than 0.1 microns. After the research stages, the company has been able to produce nanofiber microfiltration membranes with pore sizes of 10 microns, 5 microns, 1 micron, 0.45 microns and 0.22 microns in two categories of hydrophilic and lipophilic membranes. And bring it to the industrial stage. Regarding membranes with pore sizes of 0.1 microns and 0.22 microns with suitable module design, the needle filter product has also been produced and put into operation.