The Airvention AI-2202 is a hybrid humidifier that combines ultrasonic and heating methods. It features a patented 100°C high-temperature sterilization function and a large-capacity tank. Key Features: Feature | Details ------- | -------- Type | Hybrid (Ultrasonic + Heating) Model Number | AI-2202 Tank Capacity | Approximately 6L Maximum Humidification | Approximately 600ml/h Coverage | Suitable for spaces of 6-30 tatami mats Continuous Operation Time | Approximately 60 hours maximum (at low mist level) Functions | 100°C high-temperature sterilization, top-fill, automatic humidity control, 3-level mist adjustment, 12-hour timer, sleep mode, aroma対応, child lock, dry-run protection Noise Level | 30dB or less This humidifier provides both powerful humidification and cleanliness, making it suitable for use in various rooms such as living rooms and bedrooms. *Although it is a new, unused item, the box is not available as I intended to use it. ღ Shipping will be via Takkyubin (home delivery service), so please refrain from price negotiations. ( . .)" Only for those who understand and agree. Thank you very much.