Unique Design. With classic wood grain finished, this essential oil diffuser covers up to 25-30 square meters or you can use it as humidifier to moisturize the air, as a decorative piece, perfect for your room, office, yoga room, hotel etc. 4 Timer Options. Four time setting modes: 1 hour, 3 hours, 6 hours or continuous. Creating a calming, relaxing and security environment with Waterless Auto Shut-Off Function. Longer Mist Time up to 8 hours. Water tank:300ml. It can last for 6-8 hours. 7 Soothing LED Light. The color can be cycled through or set it to one fixed color. Each color has two light options: dim and bright. Adopted ultrasonic technology, this aromatherapy diffuser will not disturb your study, work or sleep. Quality Guaranteed - Owned manufactory and QC team ensure all the product 100% pass by check.