Zisa khungu nsalu ndi mtundu watsopano wobiriwira woteteza zenera zokongoletsa zomangira. Kapangidwe kake kameneka kamapangitsa kuti mpweya usungidwe mosanjikiza, zomwe zimapangitsa kutentha kwapakhomo kosasunthika ndikusunga ndalama zamagetsi zowongolera mpweya.
Nsalu ndi antistatic, si adsorb olimba tinthu mu mlengalenga, ndipo samamatira fumbi.
Kukula kwake kumakhala kosasunthika, nsalu zake zimatsimikizira kuti sizingasunthike ndipo sizipunduka, ndipo zidzasungunuka nthawi yayitali.
Chisa chakumaso chomwe chimaphimba nsalu ndichosavuta kwambiri, chimangofunika kugwiritsa ntchito zowononga nthenga kapena kugwiritsa ntchito chowumitsira tsitsi kapena chotsukira chotsuka. Osachotsa ndikutsuka m'madzi. Ndikulimbikitsidwa kuti chowumitsira tsitsi chimatsegulidwa ndi mpweya wozizira.