How do I turn it on?
Place your hand on the second knob
Turn it right (clockwise) once to turn on the aircon with the fan speed at level 1
Turn it more to the right (clockwise) to increase the fan speed
The third knob on the right would be to adjust the aircon temperature.
How do I turn it off?
Turn the first knob to "0" and the aircon would stop blowing out air
Remember to make sure that the A/C button is turned on as shown in the picture below.