Air conditioner mono block hack

This is a very dirty and easy hack to make your air condition more efficient.

How does it work?

In general mono block air conditioners suck the air of the room, cool it and a part of the sucked air is pumped to the outer world as hot air. This leads to a negative air pressure in the room and this implicates that warm air is floating to your room from somewhere. To avoid this, a part of the mechanism is covered by this "hack" and once you have an additional air intake from outside of your house this problem is solved.  You can see what I mean on the pictures attached.

The parts are already splittet and I printed it with PLA at the highest height possible (0.28mm in my case). It's not required to be beautiful. You have to use supports as well. Air temperature does not affect the hack as the sucked air is not that hot as the one which is pumped out of the room.

Once you printed the parts, glue them together (or simply use some metal sheets to connect them and screw them together) and don't forget to use tape to make this part “hermetically sealed”. Then you have to attach this to your air conditioner by using strong double sided tape and cover the holes with tape also. At the end your work should look similar to mine. 

The black pipe is fresh air, the white one is the original one for the hot air output.

Not sure if this helps someone and also not sure how many air conditioners are compatible with this, but I want to give it a chance.