My Filter setup arrived. Now I can start assembling it.
To make the assembly more easy I additionally ordered a 100mm tin hub (left side of the image). These components will be the main filter section. At the aspiration port a fleece filter will be used to catch dust, small objects and particles. Then the pipe blower will transport the fumes to the char coal filter. At the end of the filter chain I will use the HEPA filter from an old vacuum cleaner to filter fine particulates.
This sounds easy. I hope it is. Let's see if the results will be as expected.