Iyunithi yokuhlukaniswa komoya iwuhlobo lwemishini ethatha umoya njengento eluhlaza, iwuguqule ube yisimo esiwuketshezi ngokuyicindezela futhi iphole emazingeni okushisa e-cryogenic, bese ihlukanisa kancane kancane umoya-mpilo, i-nitrogen, i-argon noma eminye imikhiqizo yoketshezi emoyeni owuketshezi ngokulungiswa. .Ngokwezidingo zabasebenzisi, imikhiqizo yamayunithi okuhlukanisa umoya ingaba imikhiqizo eyodwa noma imikhiqizo eminingi ngesikhathi esisodwa, okungaba igesi noma uketshezi.