a dust remover which comprises a power supply and an electrode applied with voltage by said power supply . the dust attached to the object of dust removal is removed therefrom by bringing the electrode into contact with the object of dust removal or approaching toward the object of dust removal . the object of dust removal is a conductor and / or an insulator . the voltage applied to said electrode is a pulsed voltage of plus and minus or an ac voltage of plus and minus . or the voltage is a dc voltage having the same polarity with that of electricity with which the dust is charged , or the voltage is a dc voltage having an opposite polarity to that of electricity with which the dust is charged . the object of dust removal includes at least a ball for “ pachinko ”, a car body , a printed board , a metal box or a part thereof , a frame for glasses , a plastic lens , a plastic box or a part thereof , a fiber , a wood , a paper box or a part thereof .