Please refer to the instructions manual to know how the diffuser works.
1) Replacing the wick
The wick placed in the essential oil bottle promotes diffusion. When an essential oil bottle is fully consumed, the wick and plug must be replaced, even if the same essential oil is used.
2) Replacing the cartridge
The cartridge that contains a disc in polypropylene fibers should be replaced after the complete consumption of three essential oil bottles to maintain an optimal diffusion.