A fragrance capsule and a diffusing device therefor, the capsule includingsubstrate elements into which a fragrance is adsorbed,a frame,a first grille and a second grille which are fixed in the frame facing one another, each grille having a plurality of bars, wherethe bars of one and the same grille being spaced apart and the grilles being spaced apart, so that the capsule allows a single layer of substrate elements to be held in the frame and between the grilles and allows air to circulate through the frame around the substrate elements and the bars.
