Why can't I see any water mist particles or smell anything?

Why can't I see any water mist particles or smell anything?

Please check that the Smart Spray is installed correctly. Follow these steps: 

1. Make sure the built-in cotton swab is firmly inserted into the device.
2. Reverse the smart spray for 30 seconds after reinstallation. 
3. Wipe the spray nozzle. 
4. Long press the button on the smart spray until the indicator light blinks three times.