. Insert the nozzle tube into the corresponding hole of the main unit cover (note the direction). B. Check that the cup is securely attached and that the cup is aligned with the seal to prevent vapor leakage. C. Pour distilled water from the water inlet into the water cup. The water level should not exceed the water mark line. Otherwise, water drops may be sprayed to cause burns. D. Insert the power cord plug into the power socket that matches the rated voltage of the unit, press the steam switch, and after about 5 minutes, hot mist will be ejected from the nozzle. Press the ultraviolet light switch again, the machine can generate ultraviolet light ion mist to achieve sterilization and disinfection functions. When the hot mist is not sprayed, do not open the nozzle to the human body and wait for the steam to be ejected. The nozzle should be facing the space, and the steam should be sprayed out normally before use. E. This unit has an automatic shutdown function. When the water level is lower than the heat pipe, it will automatically shut down the protection. If you continue to use it, first turn off the power switch, pour off the remaining water in the water cup, clean the water cup, and add water again. In addition, the machine can meet the needs of different positions by adjusting the angle of the spray head (adjustment range 360°).