Product Overview: The Medisana AH 661 Air Humidifier helps maintain optimal humidity levels in your home while allowing you to add essential oils for a pleasant aroma, improving both air quality and ambiance. Key Features: ‣ Built-in aroma compartment for essential oils ‣ Aromatherapy compartment for the use of scented oils ‣ Large water tank for continuous humidification Technical Specifications: ‣ Dimensions: 250mm x 250mm x 350mm ‣ Capacity: 3500L water tank ‣ Material: BPA-free plastic ‣ Control Type: Dial knob for mist adjustment ‣ Performance: Up to 12 hours of continuous operation, Touch control buttons ‣ Safety Features: Auto shut-off when water level is low