... )CE and RoHS approval Aroma Diffuser, Ultrasonic Aroma Diffuser & Humidifier, Auto Aroma Diffuser, Mini Aroma DiffuserTechnical Specifications: • Rated ... corrosion resistant materials, featured with fashionable and innovative style, waterless automatic power-off, lower noise design, energy-saving, ... Diffuser also acts as an Air Purifier, Ionizer, Humidifier and a Mini Night Lamp. 3-4 hours operation ...