Decapsulating epoxy IC packages and stealing^W learning from western technology.
Cut a hole in one of the board of the wall cabinet. We decided that we want the air to be sucked from the top an therefore made the hole in the top board.
We used the bathroom extractor fan to draw the circle on the board, then drilled a hole and cut along the line with a jigsaw, You could also drill holes along the line and then punch through.
Drill an extra hole for the power cord of the fan.
Assemble and mount bathroom extractor fan in the board.
Continue assembling the cabinet. You can also add rubber feet and handles at the top.