Elmatec offers a wide range of filters to suit your specific needs and requirements. Cartridge filtration is a separation process that aims to retain particles (e.g. suspended solids, colloids, etc.) contained in a fluid. The fluid is filtered through a porous medium, the cartridge, under pressure. Only particles smaller than the pore diameters pass through the media. Sterilizing filtration is achieved when low cut-off levels are reached to retain microorganisms (according to ASTM F838-15).