【Magnetic Convenience】140mm 14cm PC Fan Magnetic Dust Filter attaches tool-free to any computer case. It can effectively maintain and protect the cleanliness of computers and electronic components, and ensure the optimal circulation of airflow. 【Ultra-Fine PVC Filter Mesh】140*140 mm PVC computer fan filter with 0.45 mm thickness and 0.5Φ mm hole diameter can capture fine dust and effectively prolong the service life of computer hardware. 【Convenient Cleaning Design】Convenient magnetic fan filter cover allows quick removal for cleaning/replacement. Premium PVC material withstands repeated washing without deformation - simply rinse under tap water every 2-3 months. 【Multi-Device Compatibility】This magnetic PC fan dust filter matches perfectly with home computer cases and other appliances/electronics speakers.The 5.51” universal design fits most gaming computers and workstations for complete dust protection. 【Complete Value Pack】Includes 5×140mm PC dust filters (5.51*5.51 inches) with lifetime technical support. These fine mesh magnetic dust filters are backed by our 24-hour response guarantee for any installation or compatibility questions. 140mm 5.5inch Magnetic Frame PVC Dust Filter Grills - Computer Case Fan Dust Proof Cover Black for PC Ventilation & Cooling Systems 5-Pack