Dust filter DEMCiflex DAN Case A4 SFX Internal Left Side, black, 269.6×149.7 mm

Internal left-side dust filter for DAN Case A4 SFX by DEMCiflex, designed to replace or serve as a spare filter in compatible small-form-factor PC enclosures. The filter is black and measures 269.6 × 149.7 mm, intended for installation on the inside of the left vent of A4-SFX cases to reduce dust ingress while maintaining airflow for cooling components.

Advantages

This internal left-side dust filter provides a precise fit for the A4 SFX left vent to block dust and debris before it reaches internal components, supporting cleaner internals and more consistent cooling performance. The fine mesh construction captures particles without significantly restricting airflow, and the black finish blends with the case interior. The unit is supplied as a single pack and can be used as a direct replacement part or as a spare for maintenance.

Suitable for

• Small-form-factor desktops using DAN Case A4 SFX with a compatible left-side internal filter slot
• System builders or enthusiasts performing routine cleaning and maintenance
• Environments where dust control helps sustain cooling efficiency and component longevity

Key specifications

• Type: internal left-side dust filter for A4 SFX cases
• Colour: black
• External dimensions: 269.6 × 149.7 mm
• Mounting position: inside left vent of compatible A4-SFX enclosures
• Pack quantity: single filter

How to use

Turn off the PC and unplug it from the power source before starting. Open the case according to the manufacturer's instructions to access the left vent area. Remove any existing filter or dust buildup from the filter slot. Position the DEMCiflex internal filter into the left-side slot with the mesh facing outward toward the airflow path, ensuring the filter aligns with the mounting points and sits flush. Close the case and restore power. Periodically remove the filter for inspection and cleaning to maintain optimal airflow.

Recommendations

For best results, inspect the filter every 1–3 months depending on dust levels; clean with a soft brush or compressed air and avoid washing unless the manufacturer confirms water-safe cleaning. Replace the filter if the mesh is damaged or permanently clogged to preserve airflow and cooling performance.