Patent ID: 7857897

Claim:
An air filtering apparatus comprising: a housing having an air suction port through which air is sucked and an air blow-out port through which air is blown out; an air blower for forming in the housing an air flowing passage through which the air sucked from the air suction port flows to the air blow-out port; an air filtering unit that is disposed on the air flowing passage and brings the air supplied along the air flowing passage into contact with electrolytic water containing active oxygen species to filter the air; an electrolytic water supply unit for electrolyzing prescribed water to generate the electrolytic water and supplying the electrolytic water to the air filtering unit, wherein the electrolytic water supply unit is disposed in a circulating path of the electrolytic water; and a water supply unit having a water receiving unit for receiving used electrolytic water discharged from the air filtering unit and a water stock unit which is joined with the water receiving unit, said water stock unit having a deeper bottom than said water receiving unit to stock the prescribed water containing water supplied through a water distributing pipe from an external water supply source and the used electrolytic water discharged from the air filtering unit, and a circulating pump for pumping, the prescribed water stocked in the water stock unit being supplied to the electrolytic water supply unit; wherein the air filtering unit is configured to blow out the filtered air from the air blow-out port to a room.