APPARATUS FOR PURIFYING EXHAUST GAS

摘要

PURPOSE: A device for filtering exhaust fumes is provided to enhance overall filtering efficiency since relatively little mass of particles are collected at a first dust collecting unit and great mass of particles are collected at a second dust collecting unit. CONSTITUTION: A device for filtering exhaust fumes comprises a charging unit(110), a first dust collecting unit(120) and a second dust collecting unit. The charging unit generates cation or anion using applied voltage. The first dust collecting unit collects fine particles charged by ion generated from the charging unit. The second dust collecting unit is installed outside the charging unit. The second dust collecting unit collects greater particles than the particles collected from the first dust collecting unit.