Fuhengli 120mm Magnetic Nylon Mesh Dust Filter Screen (4-pack, 16 screws)

Magnetic dust filter kit

This four-pack of 120 mm magnetic nylon mesh screens attaches to standard 120 x 120 mm fan mounts or case vents. Each filter uses an ultra-fine 80-mesh weave that stops dust and pet hair while letting air pass freely. A magnetic frame and sixteen included M5 screws give two mounting options for steel chassis. The slim 1.5 mm profile adds 53 g total weight.

Suits steel-case builders wanting tool-free dust

Installers working with aluminium or non-ferrous panels cannot rely on the magnetic strips and must use the screw holes instead. Systems that lack 120 mm mounting points or require filters larger than 120 x 120 mm will need a different solution. The pack contains exactly four filters, so builds with more than four intake locations require additional sets.

80-mesh nylon weave blocks dust without choking

The deciding specification is the mesh density of 80 meshes, which balances particle capture against static pressure loss. If your priority is maximum filtration regardless of airflow restriction, a denser mesh would be necessary. If you prefer zero restriction and accept more dust ingress, an open grill is the alternative.