He kiʻi kēia e wehewehe ana i ke kaʻina hana o Reverse Osmosis.Ke hoʻohana ʻia ke kaomi i ka hopena paʻa, hoʻokau ʻia nā molekele wai ma o ka membrane semi-permeable a ʻaʻole ʻae ʻia nā mea haumia.
A laila hoʻoneʻe ka membrane reverse osmosis i nā molekala i ʻoi aku ke kaumaha ma mua o ka wai, e like me ka sodium, nā pae kiʻekiʻe o ke kēpau, nā minerala i hoʻoheheʻe ʻia, a me ka fluoride.ʻO ka hope, hoʻopololei ke kānana post-carbon i ka wai.