Sizes available: 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 12 cm, and 15 cm. This fan filter is designed to enhance your computer cooling efficiency while providing protection and extending the life of your components. Key benefits Improves cooling efficiency and protects components by reducing debris entry into the case. Durable construction from antifire ABS resin delivers heat resistance and strong impact performance. Broad compatibility with common case fans spanning 4 to 15 cm sizes. Indoor use suitable for home or office environments, with an operating temperature range of 10°C to 55°C. Material and performance Material: antifire ABS resin for reliable heat resistance and impact strength. Built to endure elevated temperatures while maintaining filter integrity and filtration performance. Who it's for Enthusiasts and builders looking to maintain an efficient, clean, and reliable computer setup. Users seeking an easy way to protect internal components without compromising airflow. Use scenarios Scenario 1: Upgrading a home or office desktop to reduce debris ingress while maintaining good airflow in a general workstation or gaming PC. Scenario 2: Installing in compact or spaceconstrained builds, such as HTPCs or miniITX systems, where airflow is critical and filtration helps keep components clean. Scenario 3: Regular maintenance in busy environments to protect desktops and improve longevity by minimizing debris entry during daily use.