Component for a turbomachine centrifugal deaerator of an air/oil mixture, intended to rotate around a symmetrical axis, comprising a structural part (2, 3) configured to delimit a duct for the flow of said mixture, comprising: - at least one annular axial inlet of said air/oil mixture and an annular internal radial outlet, closer to the symmetrical axis than the axial inlet and configured to evacuate the oil-free air; - a circumferential centrifugation enclosure extending axially between a first end comprising said axial inlet and a second end communicating with said internal radial outlet; - at least one radial oil outlet arranged in a radially outer wall, substantially annular, of the centrifugation enclosure and configured to be able to evacuate the oil separated from said mixture by centrifugation outwards from the deaerator; comprising further at least one cellular structure, for example a foam or a lattice, configured to filter oil while allowing the air to pass and occupying at least one space in said duct which closes the communication between the axial inlet and the internal radial outlet, the structural part (2, 3) and the cellular structure are formed of a single component by additive manufacture, said space occupied by the cellular structure extending at least partially inside the centrifugation enclosure, characterised in that a free space of material extends axially into the centrifugation enclosure between the axial inlet and the space occupied by the cellular structure. - at least one annular axial inlet of said air/oil mixture and an annular internal radial outlet, closer to the symmetrical axis than the axial inlet and configured to evacuate the oil-free air; - a circumferential centrifugation enclosure extending axially between a first end comprising said axial inlet and a second end communicating with said internal radial outlet; - at least one radial oil outlet arranged in a radially outer wall, substantially annular, of the centrifugation enclosure and configured to be able to evacuate the oil separated from said mixture by centrifugation outwards from the deaerator; comprising further at least one cellular structure, for example a foam or a lattice, configured to filter oil while allowing the air to pass and occupying at least one space in said duct which closes the communication between the axial inlet and the internal radial outlet, the structural part (2, 3) and the cellular structure are formed of a single component by additive manufacture, said space occupied by the cellular structure extending at least partially inside the centrifugation enclosure, characterised in that a free space of material extends axially into the centrifugation enclosure between the axial inlet and the space occupied by the cellular structure. comprising further at least one cellular structure, for example a foam or a lattice, configured to filter oil while allowing the air to pass and occupying at least one space in said duct which closes the communication between the axial inlet and the internal radial outlet, the structural part (2, 3) and the cellular structure are formed of a single component by additive manufacture, said space occupied by the cellular structure extending at least partially inside the centrifugation enclosure, characterised in that a free space of material extends axially into the centrifugation enclosure between the axial inlet and the space occupied by the cellular structure.