Dhirta kala-soocida hawada dareeraha ah, sheyga kala-soocida hawadu waa ogsijiin dareere ah ama nitrogen.Mabda'a waa sida soo socota: hawo la cadaadiyo, horay loo qaboojiyey ayaa la geliyaa tiirka si ay uga qaybqaataan hagaajinta, H2O iyo CO2waxaa laga saaraa iyada oo loo marayo shaandho molecular, la qaboojiyey heerkulka liquefaction ee kulaylka sarrifka cadaadiska dhexdhexaadka ah, ka dibna la geliyaa tiirka si ay uga qayb qaataan hagaajinta.Heerkulka sare iyo kan hooseeya iyo kombareeyaha wareega ayaa loo isticmaalaa in lagu dhaliyo tamar qabow si loo helo oksijiinta dareeraha ah iyo alaabada nitrogen.
Dhirta kala soocida hawada dareeraha ah sida caadiga ah waxaa ka mid ah shaandhada hawada, nidaamka qaboojinta ka hor, nidaamka nadiifinta shaandhada molecular, balaadhiye heerkul sare iyo mid hooseeya, kombaresarada dib u wareega, qaboojiyaha cryogenic, nidaamka tiirka jajabka, iyo nidaamka kaydinta.