Dual Hose Mod for AEG Chillflex

This mod enables you to turn the single hose AEG Chillflex (Pro) into a dual hose unit. In theory this should increase its efficiency. Here is a video that explains it.

With this mod, the AC sucks in air from outside to cool it's condenser, instead of blowing out the cool air from inside the room.

There are 5 files in total. A simple version that is easily FDM printable, a more complex version that enables you to reuse the filter grid from the original part of the AC, and a split version of that complex design that needs to be assembled and glued afterwards (that's the version used here).