Information about this product 3 timer settings and 7 LED indicators: You can easily press the mist button to select the timer setting according to your preference (1 hour / 3 hours / 6 hours / ON). You can also press the light button to set the 7 LEDs (steady on/color changing). Cool mist and silence: Ultrasonic technology provides a fine and stable cool mist to keep the room clean and provide sufficient humidity. Calm atmosphere below 35 dB, can create a calm sleeping environment. BPA Free & Waterproof Shut-off System: This diffuser uses BPA-free advanced plastic, which does not emit harmful and plastic odor, and gives you a pleasant and healthy life. In addition, the air humidifier turns off automatically when the water runs out. Don't worry about damaging your device or endangering your users. Simple and practical design: It is an air grain humidifier, aroma diffuser / air purifier. Compact portable design, beautiful shape and unique style. Especially for people who like high quality, who love life. Usage: Can be used as an aromatherapy diffuser, air humidifier, air purifier, night light. The perfect gift for your family and friends for festivals, birthdays and anniversaries. It naturally adapts to different rooms. eg at home, bedroom, office, spa, hotel, baby room, etc.