Room fragrance heating functionIf you do not want to turn on the humidifier, you can only use the aroma function. Long press 3 seconds to turn on/off the aromatherapy functionOne flash means turn on, two flashes means turn off) Double Spray ModeOur Hotsch humidifier has two spray pots, the spray mode can be adjusted at any time. Just press the spray button to open dual spray mode, double press to open left spray mode, triple press to turn on right spray mode. TipsAutomatic shutdown after 8 hours (double spray mode)/12 hours (single spray mode) Large water tank with 800ml capacityEquipped with 800ml large water tank, the water humidifier can last up to 12 hours under full water in single spray mode and work 8 hours in double spray mode. Instead of refilling water frequently, one can have a peaceful and comfortable night. 2-Color LED Aromatherapy Night Light This electric air lamp has 2 adjustable light modes: automatic color changing and fixed color. You can adjust it freely by the light button. Press the light button once to turn on the warm light. Press again to turn on the warm breathing light. Press three times to turn off the light. It can serve as a small night light, creating a comfortable and pleasant lighting atmosphere for you. Whisper-quiet operation and automatic safety shut-off The gentle, whisper-like ultrasonic operation is perfect for use in the children's room, office, spa , in the yoga studio or in any room of your home. This aroma diffuser will automatically shut off when the water tank is empty or low to prevent overheating and safety concerns.