I've been using it for about 3 months. The tank is also a large capacity size, so you don't need to add water even if you use it all day. Please check the product details as I have also attached images. ♦︎Product Size Width 240 x Depth 280 x Height 355mm ♦︎Weight Approx. 4.0 kg ♦︎Power Supply AC100 50/60Hz ♦︎Power Consumption 40W (Ultrasonic) / 120W (Heating Ultrasonic) ♦︎Material ABS, Translucent ABS ♦︎Water Tank Capacity Approx. 5.5L ♦︎Humidification Capacity Approx. 380ml/h (Ultrasonic only: 320ml/h) ♦︎Power Cord Length Approx. 1.4m ♦︎Continuous Humidification Time Approx. 14 hours (Ultrasonic only: 17 hours) ♦︎Recommended Floor Area Wooden construction: Approx. 5-7 tatami mats Prefabricated Western-style room: 8-11 tatami mats