Beverage dispenser

A beverage dispenser comprising

• a connecting portion to connect to a downwardly extending spout of a raw water container filled with drinking water,
• a tank provided below said connecting portion for storing drinking water falling from the raw water container, and
• an extraction valve that extracts drinking water stored in said tank,
• wherein an air intake is provided at least either on top of said tank or on said connecting portion to take air in as a water level in said tank is lowered,
• wherein an air chamber is connected to said air intake, said air chamber being provided with an air inlet to allow intake of air into the air chamber from outside the air chamber,
• wherein said air chamber is separated into a plurality of vertically arranged air cells with a plurality of slanting floors slanting alternately in opposite directions, said plurality of vertically arranged air cells including a bottom air cell and a plurality of upper air cells,
• wherein vent portions are respectively provided in lower ends of said slanting floors, each of said vent portions providing ventilation from one of said upper air cells to a one of the plurality of vertically arranged air cells disposed adjacently below said one of said upper air cells
• wherein a connecting port is provided on a side of said air chamber toward which an uppermost one of said slanting floors is slanted upward, said connecting port being connected to said air intake,
• wherein an ozone generator is provided in an uppermost one of said upper air cells for generating ozone from oxygen in the air flowing in through said air inlet, and wherein said air inlet is provided in said bottom air cell on one of a right-hand side and a left-hand side of said bottom air cell, while the vent portion provided in the lower end of a bottom-most one of the said slanting floors is provided on the other of the right-hand side and the left-hand side of said bottom air cell.