This air purification device comprises: an electrolytic cell (11) having an electrode (10) therein； a storage tank (13) having a filter member (6) and a drainage part (12) therein； a tray (9) in which the electrolytic cell (11) and the storage tank (13) are provided； and a control unit (17). After electrolysis performed by using the electrode (10) has finished, the control unit (17) supplies electrolyzed water generated within the electrolytic cell (11) by the electrolysis using the electrode (10), to the filter member (6) within the storage tank (13), by operating the drainage unit (12) so as to drain the electrolyzed water within the storage tank (13).
