Lazy IKEA Lack Fan Duct

This is a very Lazy hackup of a filter inlay for a customized ikea lack table.
used with a customized variant of https://www.thingiverse.com/thing:2012384

Instruction:
Cut a hole in the back of the top table the size of this inley.
cut a hole the size of your fan on the bottom of the top table
remove the cardboard between the two holes
put some active carbon sponge inside this thing.
push the inlay into the cut hole.

PROFIT

ps.: i might add screw holes as well later, to fix it sem