Ezweni lanamuhla lobuchwepheshe elithuthukayo ngokushesha, amabhodi esekethe aphrintiwe (ama-PCB) adlala indima ebalulekile ekusebenzeni kwezisetshenziswa zikagesi. Kusukela kuma-smartphone kuya kumishini yezokwelapha, ama-PCB awumgogodla wezinto zikagesi zesimanje, ezihlinzeka ngenkundla yezingxenye ukuthi zixhumeke futhi zihlanganiswe ezinhlelweni eziyinkimbinkimbi. Kule bhulogi, sizohlola ukubaluleka kwama-PCB kanye nomthelela wawo ezimbonini ezahlukahlukene.