Iyunithi yomoya omtsha sisixhobo sokupholisa umoya esinika umoya omtsha.Yinkqubo esebenzayo, yonga umbane, kwaye ihambelana nokusingqongileyo yonke imijikelo yokuphefumla umoya omtsha.Isetyenziswe kwizakhiwo zeofisi, izibhedlele, iihotele, izitishi, iinqwelo-moya, iindawo zokuhlala, ii-villas, iindawo zokuzonwabisa, njl. Inoluhlu olubanzi lokufakela kunye nesicelo.Umgaqo osebenzayo kukukhupha umoya omtsha ngaphandle emva kokususwa kothuli, ukukhutshwa kwamanzi (okanye ukufumisa), ukupholisa (okanye ukufudumeza), njl. indawo yangaphakathi.
Umsebenzi oyintloko weyunithi yomoya ococekileyo kukubonelela ngobushushu obuqhubekayo kunye nomoya wokufuma okanye umoya omtsha kwindawo ene-air-conditioning.Ulawulo lweyunithi yomoya omtsha lubandakanya unikezelo lolawulo lobushushu bomoya, ukubonelela ngolawulo lokufuma komoya, ulawulo lwe-antifreeze, ulawulo lokuxinana kwekharbhon diokside, kunye nolawulo oludibeneyo oludibeneyo, njl.
Inkqubo yomoya omtsha isekelwe ekusetyenzisweni kwezixhobo ezikhethekileyo kwelinye icala legumbi elivaliweyo ukuthumela umoya omtsha kwigumbi, kwaye emva koko ukhuphe ukusuka kwelinye icala ukuya ngaphandle ngaphandle kwezixhobo ezikhethekileyo, ukwenza "intsimi yomoya omtsha" ngaphakathi. ukuhlangabezana neemfuno zomoya omtsha wangaphakathi.
Isicwangciso sokuphunyezwa kukusebenzisa uxinzelelo lomoya ophezulu kunye neefeni ezinkulu zokuhamba, zixhomekeke kumandla omatshini ukubonelela umoya ukusuka kwelinye icala ukuya kwigumbi, kwaye ukusuka kwelinye icala ukusebenzisa i-fan yokukhupha eyenzelwe ngokukodwa ukukhupha ngaphandle, ukunyanzelisa umoya omtsha. ibala lokuhamba liza kwenziwa kwinkqubo.Ngelixa unikezela umoya, umoya ongena egumbini uyahluzwa, ubulawe iintsholongwane, ucolwe, ufakwe ioksijini, kwaye ufudunyezwe.