The airflow guidance design of a CPU air cooler is crucial for efficient cooling. A well-designed air cooler will have optimized air channels and fins to direct the airflow precisely where it is needed. The fan plays a central role in this design. High-quality fans are designed to move a large volume of air while minimizing noise. The shape and placement of the fan blades are engineered to create a focused airstream that passes through the heat sink. The heat sink itself is usually made up of numerous fins that increase the surface area for heat dissipation. The fins are arranged in a way that guides the airflow smoothly and efficiently, maximizing the transfer of heat from the CPU to the surrounding air. Additionally, some air coolers may feature ducting or shrouds to further enhance the airflow and prevent turbulence, ensuring that cool air is continuously drawn in and hot air is expelled quickly.