Dust filter DEMCiflex Standard for 2 x 40mm fans, black, 130.7×60 mm

DEMCiflex Standard dust filter for 2 x 40mm fans, black, 130.7×60 mm is a slim, purpose-built protective panel designed to cover two standard 40 mm fan openings. Constructed from fine plastic mesh and a rigid frame, the filter reduces dust ingress into compact PC builds and small form-factor enclosures while preserving airflow. This single-piece filter fits vents with an overall size of approximately 131 × 60 mm and features actual filter openings sized to align with two 40 mm fan cutouts for straightforward installation in cases, custom cooling panels, or vented panels.

Advantages

The filter provides reliable dust protection for internal components without significantly restricting airflow, helping to maintain cooling performance and reducing cleaning frequency. Its compact dimensions and lightweight construction make it suitable for tight spaces and small cases. The black finish integrates unobtrusively with most chassis designs, and the design is compatible with standard 40 mm fan vent layouts. When mounting to non-ferrous surfaces such as aluminium or acrylic, a non-ferrous fixing option should be used to avoid reactions between materials.

Suitable for

• Small form-factor PC cases with dual 40 mm fan vents
• Fan vents in compact NAS or router enclosures
• Custom cooling panels and DIY ventilation cutouts
• Replacement or upgrade filters for existing 40 mm fan openings

Key specifications

• Overall dimensions: 130.7 × 60 mm
• Actual filter opening area for fans: two 40 mm × 110 mm apertures
• Colour: black
• Material: fine plastic mesh with rigid frame
• Sold as: single piece filter

How to use

Align the filter frame so the two 40 mm openings match the fan or vent cutouts in the case or panel. Secure the filter using appropriate fasteners or magnetic/non-ferrous fixings depending on the mounting surface; for aluminium or acrylic panels choose non-ferrous fixings. Ensure the mesh is seated flush against the vent to prevent gaps that could allow dust entry. Periodically inspect and, if necessary, remove the filter to clean accumulated dust using compressed air or a soft brush, then reinstall when dry and debris-free.

Recommendations

For optimal performance, clean the filter every 1–3 months depending on environment. Do not use solvent cleaners; avoid bending the frame when handling. Verify compatibility with your vent dimensions before purchase, ensuring the overall 130.7 × 60 mm footprint and the dual 40 mm opening arrangement fit your enclosure.