The device for evaporating volatile substances comprises a wick (1) impregnated with volatile substances and a heating element (2) that heats the wick (1) for evaporating said volatile substances, characterized in that it also comprises a reflective element (3) for reflecting the heat from the heating element (2) to said wick (1). The heating element (2) can be preferably a resistor or a ceramic heater. It permits to direct substantially all the heat provided by the heating element to the wick, preventing an excessive rising of the temperature of the surface of the device.
