The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.