The article delves into the challenges faced by Proton Exchange Membrane Fuel Cells (PEMFCs) in effectively managing water under ultra-low gas inlet pressures critical for residential safety standards. Inadequate water transport can lead to issues like flooding and voltage fluctuations, compromising overall performance and system stability. Understanding water transportation within fuel cells, including various forces like gas drag force and gravity, is crucial for enhancing water management capability. Transparent fuel cells offer a unique visualization method to analyze water behavior across flow field layers with high resolution and cost-effectiveness. Studies by Zhao Jing and others have shown how gas flow direction and rate influence water behavior and system output voltage. Additionally, research suggests that reducing operating pressures may impact performance, especially under high current densities, emphasizing the need for further investigation. Optimizing flow field types, surface properties, and employing Computational Fluid Dynamics (CFD) techniques are identified as key strategies to improve water removal and cell efficiency in PEMFCs.