2-in-1 Humidifier&diffuser: The Dual 100 acts as both a humidifier and an aroma diffuser, letting you add essential oils directly into the base for aromatherapy Top-Fill Design: For easy refills and cleanup, simply remove the lid at the top of the Dual 100 to directly access the water tank Safe and Reliable: BPA free ETL listed and CA65 tested make it safe for everyone it will automatically shutoff when water level is low or the water tank is removed Advanced Ultrasonic Technology: Spiral Air Duct Technology produces an ultra-fine mist, humidifying the room without wetting the floor or any furniture Adjustable Mist Level: Easily choose between 3 mist levels to create a comfortable environment and provide temporary relief from coughing & congestion, dry throat, and allergies Powerful Mist: The Dual 100’s mist levels reach speeds of 220mL/h and heights of up to 100 cm, quickly and efficiently spreading humidity throughout your environment. Power source type: Corded Electric Wattage: 24.0 watts