Furniture Design Lei Non Electric Aroma Diffuser by ANTBEE CO,.Ltd Non Electric Aroma Diffuser Lei’s minimal form stems from that it does not need a power source. Powered by the temperature difference in the metal, supplied by the candle heat which creates diffusion and aroma volatilization. (Patented invention.) Its minimalist design made from recyclable materials, cordless mobility, and low maintenance usability. Every aspect of design is crucial such as the glass cylindrical dome which efficiently raises the heat of the flame, the optimal gap above the aroma tray and the single blade fan to introduce oxygen, and the oval shape for heat dissipation.