The above answer from the AI assistant is not correct. 250ml or 500ml refills such as Lemon Grass are only intended for diffusers. The Aria electric diffuser cannot be filled with it.

[EDIT: 20.11] No, this refill is not intended for the Millefiori Aria.

Yes, the Millefiori refill bottles, such as the Lemon Grass 250ml, are designed to refill existing Millefiori fragrance diffusers, including the Millefiori Aria. These refills are designed to offer the same fragrance qualities and fit into the brand's corresponding diffusers.