We deconstructed the framework of traditional ventilation balls and redesigned the overall structure of the product. By creating drainage space inside the ventilation ball and redirecting the airflow path, the new ventilation ball is now leak-proof even in extreme weather conditions. We also modularized the components, allowing each part of the ventilation ball to be easily replaced, reducing maintenance complexity and costs. Additionally, the new modular design includes protective barriers on the exterior to prevent bird damage. Furthermore, we designed the top structure of the ventilation ball as a light-guiding panel, addressing both ventilation and lighting needs and enhancing the product’s value.