Designed to enhance your home with aroma, Ellia Essential Oil Diffusers are also beautiful enough to be the centerpiece of any room. They function beautifully, gently lifting your favorite aroma into your living space to help you reduce stress, boost mental clarity, and soothe your body and mind simultaneously. The Ascend diffuser uses ultrasonic technology to convert the water and essential oil into a fine mist that can be dispersed into the air evenly, for a subtle yet satisfying effect throughout your home, workspace, or any environment. Additional features, including the gentle glow of light, increase the Ascend's appeal. But the Ascend is for mind and body: the diffuser releases soothing humidity to alleviate dry air that can affect your well-being. To use your diffuser, simply remove the outer cover from the base, then remove the inner cover. Pour water into the reservoir until it reaches the max fill line, then add 5-7 drops of essential oil to the water. Depending on your personal preference, you may add more or fewer drops of essential oil. Put the inner and outer covers back on. Plug the adapter into the diffuser, then plug the adapter into an outlet. Finally, choose your mist and glow options for maximum enjoyment. When the reservoir is empty, the unit will shut off automatically - helping you relax even more. Cleaning tips: Use a clean, damp, soft cloth to clean the surface of your diffuser as often as needed. We recommend wiping out the reservoir at least once every 2 weeks.