Build a Sustainable Refillable Active Coal Filter
If you ever used air filters to keep smells, fumes and dust at a low level in your workshop, you for sure came in contact with these expensive throwaway active coal filters. While throwing away the used active coal seems unavoidable, all…
Print approx. €1.46–€1.78 excl. taxPreliminary estimate for one variant
- Downloads
- 18
- Likes
- 5
- Rating
- 0










