A mesh panel for a heat exchanger system, the mesh panel comprising: a mesh body extending from an upper end to a lower end, the mesh body having an inlet side and an outlet side opposite the inlet side, the mesh body comprising a plurality of mesh wires arranged to form a mesh pattern defining a plurality of mesh openings between the mesh wires, characterized in that the mesh body comprises: at least one penetrating mesh portion configured to deflect air flowing therethrough, the at least one penetrating mesh portion extending at least partly along a depth direction of the mesh body, the depth direction being normal to a plane extending between the upper and lower ends of the mesh body, the at least one penetrating mesh portion at least partly defining an air flow opening, the air flow opening having greater dimensions than each of the mesh openings, each of the at least one penetrating mesh portion comprising: an inlet end; an outlet end distanced from the inlet end along the depth direction; and a side wall extending between the inlet end and the outlet end at least partly in the depth direction, the side wall being configured to deflect air flowing through the penetrating mesh portion. a mesh body extending from an upper end to a lower end, the mesh body having an inlet side and an outlet side opposite the inlet side, the mesh body comprising a plurality of mesh wires arranged to form a mesh pattern defining a plurality of mesh openings between the mesh wires, characterized in that the mesh body comprises: at least one penetrating mesh portion configured to deflect air flowing therethrough, the at least one penetrating mesh portion extending at least partly along a depth direction of the mesh body, the depth direction being normal to a plane extending between the upper and lower ends of the mesh body, the at least one penetrating mesh portion at least partly defining an air flow opening, the air flow opening having greater dimensions than each of the mesh openings, each of the at least one penetrating mesh portion comprising: an inlet end; an outlet end distanced from the inlet end along the depth direction; and a side wall extending between the inlet end and the outlet end at least partly in the depth direction, the side wall being configured to deflect air flowing through the penetrating mesh portion. at least one penetrating mesh portion configured to deflect air flowing therethrough, the at least one penetrating mesh portion extending at least partly along a depth direction of the mesh body, the depth direction being normal to a plane extending between the upper and lower ends of the mesh body, the at least one penetrating mesh portion at least partly defining an air flow opening, the air flow opening having greater dimensions than each of the mesh openings, each of the at least one penetrating mesh portion comprising: an inlet end; an outlet end distanced from the inlet end along the depth direction; and a side wall extending between the inlet end and the outlet end at least partly in the depth direction, the side wall being configured to deflect air flowing through the penetrating mesh portion. an inlet end; an outlet end distanced from the inlet end along the depth direction; and a side wall extending between the inlet end and the outlet end at least partly in the depth direction, the side wall being configured to deflect air flowing through the penetrating mesh portion.