The present invention relates to a device for diffusing at least one volatile agent, comprising: an air inlet, an air outlet, a vessel that is arranged between the air inlet and the air outlet and contains at least one diffusion element suitable for storing and diffusing a predetermined amount of at least one volatile agent, said vessel being provided with at least one air flow channel that is suitable for enabling an air flow to flow, a fan that is arranged between the air inlet and the air outlet and is capable of generating an air flow which flows between the air inlet and the air outlet, the vessel and the fan being arranged such that the direction of the air flow flowing between the fan and the vessel is aligned with the direction of the air flow that is flowing in the flow channel of the vessel.
