Humidifier

A humidifier, comprising:

• a storage chamber configured to store water;
• an electrolytic unit configured to electrolyze water at the storage chamber;
• a first pipe and a second pipe to which the electrolyzed water is introduced;
• a first valve configured to open/close a fluid path of the first pipe;
• a second valve configured to open/close a fluid path of the second pipe;
• a filter unit disposed at the first pipe and configured to filter the electrolyzed water;
• a humidification chamber configured to be supplied with water from one of the first pipe or the second pipe, the humidification chamber comprising a drainage hole configured to discharge water and a drainage valve configured to open/close the drainage hole;
• a tray installed at the humidification chamber and configured to store the water discharged through the drainage hole of the humidification chamber;
• and
• a control unit configured to supply the filtered water to the humidification chamber at a humidification mode by controlling the first valve, to discharge a remaining of the filtered water that remains after being used for a humidification to the tray though the discharge hole by controlling the drainage valve at an ON position when the humidification mode is cancelled, to supply the electrolyzed water to the humidification chamber at a sterilization mode by controlling the second valve when the discharge is completed, and to discharge the sterilized water to the tray by controlling the drainage valve at the ON position when the sterilization mode is cancelled,
• wherein the electrolyzed water at the humidification mode is a part of the water electrolyzed by the electrolytic unit, and the electrolyzed water at the sterilization mode is the remaining of the water electrolyzed by the electrolytic unit.