Na'ura mai sanyaya ruwa wanda aka fi sani da freezer, chiller, injin ruwan kankara, injin daskarewa, injin sanyaya, da sauransu, saboda yawan amfani da kowane nau'in rayuwa, don haka sunan ba shi da ƙima. Injin da ke cire tururin ruwa ta hanyar damfara ko zazzagewar sanyi mai zafi.Ciwon tururi mai sanyi ya ƙunshi manyan abubuwa guda huɗu na injin sake zagayowar sake zagayowar tururi, evaporator, condenser, da ɓangaren na'urar aunawa a cikin nau'in firiji daban-daban.