Gufunga umugozi nigice cyingenzi cyimpumyi kandi gifasha mukuzamura no kumanura impumyi.Cyakora mukwemerera umukoresha kurinda umugozi murwego rwifuzwa, bityo ugakomeza guhuma.Gufunga umugozi bigizwe nuburyo bufunga kandi bukingura umugozi kugirango ugumane impumyi.Iyo umugozi ukwega, gufunga bifata kugirango bigumane, birinda impumyi kugwa kubwimpanuka cyangwa kuzamuka.Iyi mikorere yongerera ubuzima bwite, kugenzura urumuri no korohereza, ituma abayikoresha bahindura byoroshye impumyi kuburebure bwabo hamwe nu mfuruka.