Cold Dryer ni impfunyapfunyo yumye ya firigo, icyuma gikonje ni uburyo bwo gutangiza ikoranabuhanga rishya, ni sisitemu ya pneumatike mubice byo kuvura ikirere.Ubushyuhe buhererekanwa hagati ya firigo nu mwuka uhumanye kugirango ugabanye ubushyuhe bwikirere bugabanutse kugera ku bushyuhe bwikime kiri hagati ya 2 na 10 ° C.Ukurikije ihame ryo gukonjesha na Dehumidification, ubushyuhe bwumwuka uhumeka buhinduranya binyuze mumashanyarazi, compression Air ihuza amazi ya gaze mumazi yamazi, asohoka mumashini akoresheje icyuma gitandukanya amazi.Ubushyuhe buhinduranya hagati ya firigo nu mwuka uhumanye kugirango ugabanye ubushyuhe bwikirere bugabanijwe kugera ku bushyuhe bwikime hagati ya 2 ° C na 10 ° C.