Izikhundla zomoya wezulu zokugcina imithombo yomoya wezulu ziyizinto eziphambili ezisiza abantu ukusebenzisa umoya wezulu ngaphandle kokuxhumeka kumthombo wamandla wokugcina imithombo yomoya wezulu. Ziyagcina amandla esikhundla sesolwe kusenziwa amandla okusebenza kwezindawo zokugcina imithombo yomoya wezulu nezindawo zokuthengisa. Ngokuphela kwezindawo eziningi zokugcina imithombo yomoya wezulu, izikhundla zomoya wezulu zokugcina imithombo yomoya wezulu ziyabhekana ngezinye izindawo. KaMinvon kunezikhundla zomoya wezulu zokugcina imithombo yomoya wezulu ezinamandla ozikwazi ukuyisebenzisa kahle kwezindawo zakho zokugcina imithombo yomoya wezulu. Kodwa, nakuba lezi zinhlobo zokugcina imithombo yomoya wezulu ziyakwenzeka kahle, ziyakwenzeka kahle kwezinye izindawo. Isibonelo, ukuthenga izikhundla zomoya wezulu zokugcina imithombo yomoya wezulu ezinamandla Inverter Yonke-Enye kungakwazi ukuthuthukisa kakhulu ubukhulu bokusebenza nobukhulu bokubaluleka.