Filter for a fluid-conducting pipe

A filter arrangement, comprising a self-supporting areal filter element (1), a carrier pipe, and a sleeve, the filter element having a circumference (2) adapted to be fixed directly or indirectly to the carrier pipe to cover a free cross section of the carrier pipe, the circumference (2) of the filter element (1) circumscribes a central filter plane (4), the filter element (1) comprises at least one layer formed of a plastically deformable material and is provided with at least one undulation (5) or bead (13), which does not intersect the circumference (2), such that the filter element (1) intersects the filter plane (4), or a plane (4a) parallel thereto, at least four times within the circumference (2), the filter element (1) is fixed to the carrier pipe (8) and covers a clear internal cross section thereof, the filter element (1) is, at the circumference (2) thereof, bent to form a circumferential region running parallel to an outer wall of the carrier pipe (8), and the sleeve (10) clamps the circumferential region between itself and the carrier pipe (8).