FIELD: chemistry.
SUBSTANCE: apparatus (1) for treating spent gas containing soot particles (2) comprises: one ionising element (3) for ionising soot particles (2), one filter element (4), wherein electric potential is applied to one area of the filter element (4), one flow directing device (8) which can affect flow of the spent gas such that deposition of soot particles (2) on the ionising element (3) or one electrical insulation (9.2) of the filter element (4) can be prevented or eliminated.
EFFECT: reliable operation of the spent gas outlet system.
9 cl, 3 dwg
