This cold mist aromatherapy machine has a large capacity 500ml water tank, which can work continuously for 10 hours under low mist conditions. Aromatherapy Humidifiers with Remote ControlThis ultrasonic aromatherapy machine can be used as diffuser and humidifier. This aromatherapy oils humidifier comes with a remote control, which makes it more convenient for you to use it. You can use the remote control to quickly and easily start the aroma diffuser, turn on the light or fog mode, adjust the fog force and select the timer. Light & Mist ModeThis electric aroma diffuser has 7 colors adjustable LED light. It is an aroma diffuser and a night light, creating a soft lighting atmosphere for you, allowing you to relax in the soft light. And this fragrance diffuser has two adjustable mist modes, press "HIGH/LOW" button to adjust strong mist and weak mist. 4 timers and automatic shutdownThe aroma diffuser has four timing modes: 60min, 120min, 180min and continuous. You can choose one of them to determine the working hours of the aromatherapy machine. When the time runs out, the aromatherapy machine will turn off automatically. If you choose to work continuously, the aromatherapy diffusers will turn off when the water runs out. This pure essential oil diffuser is made of BPA free material. It is not toxic and harmless when used, and will not cause bad effects on the environment and your body. It does not generate heat and is very safe.