Cov txheej txheem tsim khoom ntawm wrought hlau rooj thiab cov rooj zaum muaj ntau cov kauj ruam, nrog rau kev txiav, vuam, sib tsoo, thiab pleev xim, kom ntseeg tau tias txhua yam khoom ua tau raws li cov qauv zoo. Cov kev kho deg xws li electrostatic txau zoo tiv thaiv xeb thiab txuas ntxiv lawv lub neej. Tsis tas li ntawd, wrought hlau rooj thiab cov rooj zaum muaj qhov hnyav hnyav - cov kabmob muaj peev xwm, ua rau lawv haum rau ntau qhov chaw xws li tsev, tsev noj mov, cafes, thiab qhov chaw sab nraum zoov.
