The term "microplastics" refers to particles and plastic fragments that fall within a particle size range of 1 µm to 5 mm. Wire mesh filters are an ideal filtration method of reducing the entry of a large proportion of particles into the environment via wastewater. With a filter fineness adapted to the optimum flow rate, the uniform mesh geometry of robust and stable metal wire mesh ensures a maximum filter capacity. A wire mesh filter medium can be easily integrated into existing micro-screening systems.