I already used 130mm active carbon pads for my soldering fume extractor (iSuck), so this is just another usage for those filters. The model is made that if you print PLA, you can simply remove the filter without the needs to unscrew anything.
Special thanks goes to Mark Ganson for the FreeCAD Honeycomb Macro! ;-)
Happy printing!
The author marked this model as their own original creation.