■ Humidification volume: 200ml ■ 2-stage humidification adjustment ■ Tank capacity: 2.2L ■ Continuous humidification: Approximately 10.5 hours ■ Applicable area: Reinforced concrete: Approximately 6 tatami mats / Wooden: Approximately 3 tatami mats ■ Aroma function Operation confirmed Although there is no box or instruction manual, it is easy to operate and can be used immediately without any problems. I have cleaned it as much as possible. Humidification type: Ultrasonic Applicable area: 4.5 tatami mats ~ Tank capacity: 2L ~ less than 3L Humidification volume per hour: ~ less than 300mL Please understand that this is a used item before purchasing.