Summary

This active filter housing uses a standard 40mm fan. same as most extruders.
You stuff the container with active carbon filter of the sponge type, attach the fan with 3mm screws on the top with air direction toward the container.

The fan can be powered from most printers 12V power supply.

It can be a good and practical solution for ABS printing with closed printers as well as general air purifier for welding, etc.