Nsalu ya uchi imachititsa khungu ndi mtundu watsopano wa zomangira zobiriwira zoteteza chilengedwe.Kapangidwe kake kapadera kamapangitsa kuti mpweya usungidwe mu dzenje, zomwe zimapangitsa kuti kutentha kwa m'nyumba kukhale kosasintha komanso kupulumutsa ndalama zamagetsi pa chowongolera mpweya.
Nsaluyo imakhala yotsutsana bwino ndi mankhwala osiyanasiyana.Sichiwonongeka ndi ma asidi ndi alkali, ndipo sichiwopa nkhungu kapena mphutsi.Ikhoza kulepheretsa maonekedwe ndipo sangakhoze kuwona ziwerengero zamkati ndi zakunja, koma pali lingaliro la kuwala.Umboni wa chinyezi, mabakiteriya sangathe kuberekana, ndipo nsaluyo siidzakhala yankhungu.
Kuyeretsa ndi kukonzanso kwa nsalu yotchinga zisa kumakhalanso kosavuta, kumangofunika kugwiritsa ntchito nthenga za nthenga kapena kugwiritsa ntchito chowumitsira tsitsi kapena vacuum cleaner.Osachichotsa ndikuchitsuka m'madzi.