IRIS OHYAMA Simple Design Humidifier, 2021 Model Used for only one season and stored in its box, so it's in relatively good condition. Ultrasonic x Heating "Hybrid Humidifier" ◆ Hybrid humidification that takes the "best of both worlds." Heats the water for hygienic humidification. Heating with a heater provides clean steam and efficient humidification. The ultrasonic mist doesn't get hot, so you can use it at home without worrying about burns. It also operates quietly, making it great for use while sleeping. ◆ Customize the humidification method and mist volume to your liking. ＜Energy-saving mode＞ Heater ON/Hybrid humidification for increased humidification! Heater OFF/Ultrasonic humidification for energy saving. ＜Humidification mode＞ The mode switches each time you press the button: "High → Normal → Low".