EBM / EBN fa'asologa o cartridges e faia i le natura hydrophilic nylon N6 ma N66 membrane, faigofie ona susu, ma le malosi tensile lelei ma le faigata, fa'amavaega maualalo, lelei solvent tete'e fa'atinoga, fa'atasi ai ma feso'ota'iga vaila'au lautele, aemaise lava talafeagai mo le tele o solvents ma vaila'au fa'aogaina. .