Kala-soocida dabaylaha duufaantu waa qalab dareere-adag oo kala-saarid ah. Waxay isticmaashaa mabda'a duufaanta si ay u kala soocdo adkaha, ay ku jiraan wasakhda, qashinka dhagaxa, jajabyada birta, miisaanka, iyo kiristaalo alaabta, laga bilaabo dareeraha (dareereyaasha, gaaska, ama gaaska-dareeraha isku dhafka ah). Waxaa loo isticmaalaa in laga saaro walxaha aadka u fiican (5 microns @ 98%) kondensate ka soocay dareeraha dareeraha gaaska kaas oo ay adkahaasi galeen marxaladda dareeraha ah oo sababay xannibaadda iyo nabaad guurka nidaamka wax soo saarka. Marka lagu daro tignoolajiyada gaarka ah ee SJPEE, shayga shaandhada waxa uu ka samaysan yahay maaddooyin u adkaysta dhoobada tignoolajiyada sare (ama loo yaqaanno aadka ka-hortagga nabaad guurka) Qalabyada kala-soocidda adag ee waxtarka sare leh ayaa loo qaabayn karaa oo la soo saari karaa iyadoo loo eegayo xaaladaha shaqo ee kala duwan, beeraha kala duwan iyo shuruudaha isticmaalaha.