Dehumidifier Guangzhou after-sales service center, your call! We will serve you wholeheartedly. Usage of dehumidifier: Start/Standby button) Machine, Standby button 2, Fan button Press this button to select the fan speed (zui small file, zui big note: after the machine is started, but before the compressor is started, the air volume cannot be adjusted (in this case, pressing the fan button is unresponsive); Only when the machine is started and the compressor is started normally can the air volume be adjusted (at this time, press the fan button to adjust the ZI small gear and the ZI large gear). Call system -24 hours-