[PureGo Fruit and Vegetable Cleanliness Detector] Why does some parts of PureGo turn yellow after a period of use?

This product uses UV light to detect residues. For safety reasons, this product does not contain any anti-yellowing agents, therefore prolonged exposure to the UV lights it emits may cause the certain parts of this device to turn yellow after time. This is completely natural and does not affect the functions of the device, nor cause harm to humans.

 

For more information, please refer to this https://www.asus.com/us/Networking-IoT-Servers/Smart-Home/All-series/PureGo-PD100/

For frequently asked questions, please refer to this https://www.asus.com/us/support/FAQ/1043803