This is a simple design IRIS OHYAMA tabletop humidifier. It has a humidification capacity of 280ml/h and a 4-liter tank. It's an ultrasonic type. It's a top-fill type. Continuous humidification is 14 hours on HI mode. I purchased it new on Amazon in October 2025 (the model is from 2024). It has been cleaned with citric acid. It will be simply packaged. The model is AZHM-UU28B-W. Thank you for looking.