Rugged Fume Extractor for 120mm fan

My design uses sneakypoo's head filter, but it has a wider base, which can also be used as a handy tray. Soon I will design and upload a small box that will fit on the tray, which will allow powering a 12/24V fan at it's nominal voltage, powered by USB.

Update 11 Oct 2018:

Uploaded a v2 version of the fan mount and of the stand that has smaller holes(2mm)