Finding a quiet and efficient cooling fan is the ultimate goal for every enthusiast. The FF81 is a fan grille designed for easy installation with any 80mm fan. The honeycomb pattern on the grille not only reduces wind shear noise but also channels the airflow into more focused beam. Its integrated filter also provides reduced dust buildup to extend the life cycle of components. All in all, the FF81 is an excellent upgrade for any 80mm fans in your system. - Honeycomb grille increases airflow focus - Integrated filter provides class leading dust reduction. - Highly compatibility with all 80mm fan