Space cleaning device

A space cleaning device comprising:

• a hypochlorous acid water generator comprising an electrolytic bath and an electrode configured to generate a predetermined amount of hypochlorous acid water;
• a mixing bath, being a container configured to store a water mixture of the hypochlorous acid water and water;
• a hypochlorous acid water supply unit comprising a pump and a pipe and configured to supply the hypochlorous acid water from the hypochlorous acid water generator into the mixing bath;
• a water supply unit for supplying the water to the mixing bath;
• a water level sensor for detecting a water level of the water mixture stored in the mixing bath;
• a humidifying purifier comprising the mixing bath, a humidification motor, and a humidification nozzle, the humidification motor being configured to rotate the humidification nozzle so that the water mixture stored in the mixing bath is micronized and released;
• and
• a control unit comprising a processor and a memory storing instructions, the control unit being configured to control, by executing the instructions, operations of the hypochlorous acid water supply unit and the water supply unit,
• wherein the control unit is configured, by executing the instructions, after supplying the predetermined amount of the hypochlorous acid water and supplying the water to fill the mixing bath with the water mixture, to execute each of a first control of intermittently controlling an operation of the hypochlorous acid water supply unit to supply the predetermined amount of the hypochlorous acid water to the mixing bath once in every predetermined time period, and a second control of controlling an operation of the water supply unit to supply the water to the mixing bath based on information related to the water level of the water mixture received from the water level sensor, and
• wherein the hypochlorous acid water generator is configured to start generating a new predetermined amount of the hypochlorous acid water when the predetermined amount of the hypochlorous acid water is supplied from the hypochlorous acid water generator to the mixing bath.