<p>The internal structures of fluid filters are composed of porous materials. The use of lattice structures for these materials has emerged as one of the most effective options due to their exceptional properties. The goal of this study is to investigate the particulate matter (PM) capture characteristics of filters featuring lattice structures. Employing experimental methods and computational fluid dynamics for analyses and simulations, this study examines the PM capture ratio and the changes in pressure across the filters. Characteristics of the lattice also were evaluated, including pore size, porosity, and surface-to-volume ratios. Finally, an appropriate filter with enhanced capture efficiency based on a high PM capture ratio and a large pressure change is proposed.</p>