This is a Zojirushi steam humidifier. I think the gray color, which blends in with the room, is stylish. I've used it for about two seasons, so there's some wear and tear, but I've maintained it regularly with citric acid, so it's in relatively good condition. Please check the photos for the condition. 【Specifications】 Capacity: 4.0L Body size (approx. cm): Width 24.0 x Depth 27.5 x Height 36.5 Weight (approx. kg): 3 Power cord (m): 1.2 Color: Gray Tank capacity: 3L to less than 4L Applicable area: 12 tatami mats and up Humidification type: Steam type ● Clean steam type It humidifies the room by cooling the boiled clean steam to about 65°C. ● Easy maintenance "No filter" & "Wide-mouth container" By adopting the same structure as a pot, there is no filter, and the fluorine-processed wide-mouth container makes maintenance easy. You can also fill it with water just by opening the lid like a pot. ● Dual sensor automatically controls humidity "Automatic humidification 3 levels" The "humidity sensor" and "room temperature sensor" dual sensors automatically control the comfortable humidity. You can choose from 3 levels: "Strong", "Standard", and "Low". "Strong" operation is recommended in the winter when the air is dry, and "Low" operation is recommended in the autumn when you want to humidify gently. ● "Humidity monitor" that shows the condition of the room You can check the condition of the room with the lamps: "Low humidity", "Appropriate humidity", and "High humidity". ● Convenient for sleeping "On/Off dual timer" The on timer has 3 levels: 4, 6, and 8 hours, and the off timer has 3 levels: 1, 2, and 4 hours. You can select each timer individually. ● Triple safety design "Child lock", "Lid opening/closing lock", "Spill prevention structure" Child lock: Just press the key for 3 seconds to disable all operations. * For safety, the operation stops when you press the "Off" key. Lid opening/closing lock: The lid is always locked with a lever, so it won't open easily even if it falls over. Spill prevention structure: Minimizes water leakage even if the main unit is accidentally knocked over. * Please make sure the lid is closed securely. * If the main unit is left lying down, a small amount of hot water may flow out from the steam outlet. ● Long-time humidification convenient for sleeping "Continuous humidification for about 8 hours" "Continuous humidification for about 8 hours" when operating on the "Strong" course continuously with a room temperature of 20°C and full water.