Housmile the 3rd Version Aromatherapy Essential Oil Diffuser Our diffuser is made of wood-like material not real wood. Just likes a ball,its soft line and warm color adds more beauty to itself. Once you turn it on,mist mixed with essential oil lingering on in the room and humidify your room. When the diffuser is running, giving you a comfortable and relaxed atmosphere and lifting your mood with the aroma smelling. How to maintainIn our daily life, we'd better to clean it once after using for a week. Do not use any chemical products(acids,...)or corrosive product to clean the device. If the diffuser is not used within more than two days, it is also needed to be cleaned, preventing bacteria. After cleaning it, please keep it well in a dry condition. How to clean1.Shut down the diffuser and power it down. 2.Take off the sealing mouth and the cover. 3.Clean the inside with fresh water. 4.Wipe up the diffuser. 5.Replace the sealing mouth and the cover. Specifications: Water Capacity: 600ml Size: 7.5*7.5*7.9 inch Weight: 19.4oz (with adaptor) Power: 9W Output: DC 18V 500MA Input: AC100-240V 50/60HZ Materials:ABS,PP Package:1*Housmile Diffuser 1* Adapter 1* Measuring cup 1* User Manual Special Note: Only tap water is available. Oil is not included in the package. Only water-soluble essential oil is available. Please do not exceed the MAX LINE when adding water. Please use the unit on a stable place and keep away from child. Please clean out ultrasonic nebulizer once a week with cotton swab.