24 Pack Activated Carbon Filter Replacements For Solder Smoke And Fume Extraction, Sealed Fresh Absorber Filters For Ventilation, Universal Fit 4.7 X 4.7 Inch DIY Fan Units

24 Pack Cotton Pre Filters for Solder Smoke Extraction Systems
✔️ 24 black cotton filters sized 4.7 by 4.7 inches each

These pre filter cotton replacements help capture dust and fumes during soldering or similar tasks in workshops and labs.

✅ Material is black cotton
✅ Size 12 by 12 cm or 4.7 by 4.7 inches
✅ Comes as a pack of 24 sealed units
✅ Fits most diy fan units and extraction setups

💡 What are pre filter cottons used for in extraction systems? They catch particles before they reach the main filter in smoke removal units. - Handy for soldering stations to trap flux vapors and oily smoke - Works in laser setups printing areas and welding benches too - Helps maintain cleaner air without frequent main filter changes

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