Magnetic Dust Filter DEMCiflex 2 x 40 mm for PC case ventilation, model 503211

DEMCiflex magnetic dust filter 2 x 40 mm (model 503211) is a low-profile filter designed for PC case ventilation and small fan intakes. It combines a fine mesh media with a magnetic frame to provide dust protection for internal components while preserving airflow in compact and space-constrained systems. The filter is sized to suit slim vents and secondary cooling openings commonly found in desktops and small form factor builds.

Advantages

The magnetic mounting allows quick installation and removal without tools, enabling fast cleaning and maintenance. The fine filtration media captures dust particles while minimizing airflow restriction, helping to maintain cooling performance. Its compact 2 x 40 mm footprint fits narrow ventilation slots and small fans, offering targeted protection where full-size filters are impractical.

Key specifications

• Filter dimensions: approximately 2 x 40 mm footprint for slim vents and small fan intakes
• Attachment method: magnetic frame for tool-free mounting and removal
• Filtration type: fine mesh media for dust capture with low airflow resistance
• Profile: low-profile design suitable for narrow slots and compact chassis areas
• Compatibility: intended for small ventilation openings and compact cooling arrangements

How to use

Place the magnetic dust filter over the target ventilation slot or small fan intake so the magnetic frame sits flush against the case surface. Ensure the filter covers the full opening and that airflow direction passes through the mesh. To clean, gently remove the filter by pulling it away from the case, then brush or rinse the mesh according to the manufacturer’s care guidance and allow it to dry completely before reattaching. Reinstall by aligning the filter with the vent and letting the magnets secure it.

Recommendations

Inspect and clean the filter periodically based on environmental dust levels—more frequent checks in dusty locations. Avoid using damaged or torn mesh; replace the filter if the magnetic frame or filter media is deformed. When reinstalling, confirm the filter does not obstruct fan blades or interfere with cables.