Simulated flame The unique simulated flame aroma humidifier makes your room look cool, which is very suitable for amazing decoration Automatic shutdown The aroma diffuser has a built-in water level sensor, when the water level is lower than the safe water level, it will automatically turn off the power Luminous The misty air humidifier with soft lighting will bring you romantic companionship at night Advanced technique creates prefect mist This humidifier uses ultrasonic vibrations rather than normal heat to make mist. It atomizes water and oil through ultrasonic vibrations which can make perfect vapor that preserves the integrity and original therapeutic properties of the oils A Feeling of Cool and Fire A realistic flame effect can be generated by the fire (smart LED lights) and the cool (mist from the diffuser). You can choose either gentle flame or violent flame by a short touch or a long touch of the button. With this Essential oil diffuser at night, like sitting near a fireplace, you will feel really relaxing and healing.