Omala&reg; Ultrasonic Aromatherapy Essential Oil Diffuser Cool Aroma Mist Humidifier with LED Light for Home and Office (White) Portable - easy to move from room to room. Make your home smell wonderful. Stay Healthy - humidify your living space to prevent dry, stuffy air and flu/cold germs infecting your loved ones. Prevent dry and chapped skin in dry winter months. Add a few drops of your favorite essential oil (NOT INCLUDED) to enjoy wonderful aromas throughout your home. Humidify the air, breathe easier, and relieve cough and sinus congestion due to colds, allergies, and flu. Reduce odors in your house from cigarettes, cooking, and pets. Spark your kids imagination with 7 changing mood lights, each of which is adjustable between bright and dim modes, and could be set steady on. Great night light for young children scared of the dark at bedtime. Aromatherapy Essential Oil Diffuser will power off if there should be no water in it. The top of this device twists off for easy fill. Power cord plug from the bottom with a place for the cord to carry out from the side of the diffuser offering stability. 365 days warranty and 30 days money back for any reason.