Elegant Easter Eggs design and cozy 7 color changing LED lights,may use as a night light alone that offers soothing glow for relaxation. Day Spa Essential or Great Accessory for Home Living room or Baby Kids Bedroom Corrosion resistant PP Material,high quality PP water tank, food grade PP material, pollution-free, non-toxic, easy to clean, more durable: PP is known as polypropylene, lightweight, easy to clean, resistance to corrosion, is widely used in baby bottles,tableware, etc Ideal for office, baby nursery, yoga studio, spa, massage therapist studio. tabletop, nightstand, office,bedroom,dorm or cubicle. Whisper-quiet portion increases air moisture for easier breathing and a good night sleep. Note: 1.The essential oil is not included. 2.If water added more than max scale-200ml, add water in the course of using and use high temperature water, it will affect the spray, cause none or less spray. (Less water means more mist) About the essential oils and Note Stafety Description: 1. For optimal use, we recommend that use this diffuser/humidifier in the room about 15-25square meters. 2. Please use the Water-Soluble Essential Oils, which will help fill your space with more fragrance without affecting mist output. 3. Do not open it in its work ,to prevent its water from leaking splashing on you. Simple Operation 1.Put this product on a horizontal position; 2.Lift up the cap of the humidifier, fill the water tank with purified water; 3.Add drops of aromatherapy /essential oil into the water tank; 4.Connect the humidifier to power source and press MIST to choose your desired mode.