An on-floor mount type air filtering apparatus to remove bacteria is equipped with a gas-liquid contact member (5) that is disposed in an on-floor mount type housing (2) and formed of material having little reactivity to electrolytic water, an electrolytic water dropping unit (17, 5C) for dropping electrolytic water to the gas-liquid contact member (5), and an air blowing fan (7) for blowing indoor air to the gas-liquid contact member (5). The housing (2) has an air suction port (3) provided at the lower portion thereof and an air blow-out port (4) provided at the upper portion thereof, and the indoor air sucked from the air suction port (3) by the air blowing fan (7) is brought into contact with the electrolytic water dropped to the gas-liquid contact member (5) and blown out from the air blow-out port (4).