Flashforge Dreamer Air Filter

This a holder for the exhaust fans for a FlashForge Dreamer. It holds a HEPA and anactivated carbon filter from a refill pack for a B-747 B-757 B-H04 air filter:
https://www.amazon.de/dp/B009NP64TO/ref=cm_sw_r_tw_dp_x_B6N-xbE67W5S0

The holder is screwed on with the built in outer screws from the fans on the back. The filters slide in the top and then the lid is snapped in the back and screwed on with two M3 screws and nuts.

Fusion 360 source: http://a360.co/2dXbJe0