BONA yaing'ono yoyesera yoyezera ulusi wa fiber membrane element itha kusinthidwa ndi zinthu zosiyanasiyana zolemetsa za ma cell (UF, MF).Amagwiritsidwa ntchito kwambiri pazachilengedwe, zamankhwala, chakudya, mankhwala, kuteteza chilengedwe ndi zina, ndipo angagwiritsidwe ntchito poyesera njira monga kulekanitsa, kuyeretsa, kuwunikira, komanso kutseketsa madzi amadzimadzi.