Aromatherapy function: add water into the water tank (not above the water level), add an appropriate amount of essential oil, press the atomization switch button briefly to turn on the aromatherapy atomization; Short press again to stop atomization Light function: press the light switch button briefly to turn on the flame atmosphere light; Short press again, Flame atmosphere light brightness increased by 30%; Short press again; Turn off the flame atmosphere light Protection function: built-in water shortage protection chip, automatically stops working after detecting no water