Reverse osmosis makina ( RO makina ) ndi makina oyera amadzi omwe amadutsa madzi osaphika kudzera pa fyuluta yabwino.Reverse osmosis ndi mtundu watsopano wamakono waukadaulo woyeretsa madzi.Kudzera m'mbuyo osmosis chinthu kusintha chiyero cha madzi, kuchotsa zosafunika ndi mchere zili m'madzi.athu a RO Makina amagwiritsidwa ntchito makamaka pa hemodialysis, chipatala, labotale.