Electrostatic precipitator and additive manufacturing apparatus

An electrostatic precipitator, comprising:

• a housing;
• a gas inlet, provided on the housing, and supplied with gas containing dust that is a magnetic substance;
• a charging part, provided inside the housing and positively or negatively charging the dust;
• a collecting part, provided inside the housing and capturing the charged dust;
• a cleaning device, provided in the housing, and comprising at least one of a charging part cleaning device that removes the dust attached to the charging part and a collecting part cleaning device that removes the dust attached to the collecting part;
• a magnet filter, provided downstream of the collecting part and inside the housing;
• an ozone removing filter, provided downstream of the magnet filter and inside the housing and removing ozone from the gas;
• and
• a gas outlet, provided on the housing and discharging the gas in which the dust and the ozone are removed,
• wherein in the magnet filter, a plurality of magnet plates are arranged at a predetermined interval, a downstream side of each magnet plate provided on an upper side with respect to a center is inclined downward, and a downstream side of each magnet plate provided on a lower side with respect to the center is inclined upward.