Select options 4 in 1 400ml Wood Grain Essential Oil Diffuser & Ultrasonic Mist Humidifier $29.99 Rated 4.91 out of 5 About this 4 in 1 Ultrasonic cool mist Humidifier & Wood Gain Essential Oil Diffuser : 4 in 1 Design : Essential oil diffuser + mist humidifier + air purifier + LED light 400ml Large Capacity: Large water tank can hold 400ml water. This wood grain diffuser can keep running around 12 hours. Multifunctional: You can choose high or low mist mode, set 1H/ 3H/ 6H / continues on running time and select 7 lighting color between bright and dim. The light can be turned off completely if you don’t want it when you sleep. Wood Grain Coated: Nice dark wood grain coated, looks like a real wooden diffuser. Waterless Automatically Shut-off: Automatically turn off the oil diffuser when the diffuser runs out of water. This wood grain diffuser is perfect if you want to use a diffuser during sleep. BPA Free: Our essential oil diffuser made from BPA Free plastic. Even safe for babies.