A production method of a filtration system comprising at least one recycled plastic filter support strip and a polymer filter, wherein the recycled plastic filter support strip comprises recycled waste microfibers, characterized by the steps of - crushing a filter of a laundry washing/drying machine at the end of its economic life as a whole together with waste microfibers accumulated on said filter during operation of said washing/drying machine and the plastic filter support strip in the crusher, - granulating the crushed materials in the recycling extruder, - obtaining recycled plastic support strip by means of o injection molding method from the granules of the mixture of the filter, the plastic filter support strip and waste microfibers, or o adding the granules of the mixture of the filter, the plastic filter support strip and waste microfibers at a certain ratio into the original plastic strip material during the injection molding, or o first mixing the granules of the mixture of the filter, the plastic filter support strip and waste microfibers with the original plastic strip material by means of compounding extrusion method and then obtaining the recycled plastic support strip with the use of obtained mixture by means of the injection molding method, - obtaining the filtration system ready for reuse in the filtration applications by mounting new filters to the obtained plastic support strips. - crushing a filter of a laundry washing/drying machine at the end of its economic life as a whole together with waste microfibers accumulated on said filter during operation of said washing/drying machine and the plastic filter support strip in the crusher, - granulating the crushed materials in the recycling extruder, - obtaining recycled plastic support strip by means of o injection molding method from the granules of the mixture of the filter, the plastic filter support strip and waste microfibers, or o adding the granules of the mixture of the filter, the plastic filter support strip and waste microfibers at a certain ratio into the original plastic strip material during the injection molding, or o first mixing the granules of the mixture of the filter, the plastic filter support strip and waste microfibers with the original plastic strip material by means of compounding extrusion method and then obtaining the recycled plastic support strip with the use of obtained mixture by means of the injection molding method, o injection molding method from the granules of the mixture of the filter, the plastic filter support strip and waste microfibers, or o adding the granules of the mixture of the filter, the plastic filter support strip and waste microfibers at a certain ratio into the original plastic strip material during the injection molding, or o first mixing the granules of the mixture of the filter, the plastic filter support strip and waste microfibers with the original plastic strip material by means of compounding extrusion method and then obtaining the recycled plastic support strip with the use of obtained mixture by means of the injection molding method, - obtaining the filtration system ready for reuse in the filtration applications by mounting new filters to the obtained plastic support strips.