Wall Mounted Air Conditioning Air Conditioning In 1 Room, And An Exhaust Fan In The Wall...?

Air conditioning in 1 room, and an exhaust fan in the wall...? - wall mounted air conditioning

Hey guys,
This idea of this work:

I have 2 bedrooms,
1 has a wall unit air conditioner cool the room. could be a hood, such as:
http://www.universalfans.com.au/univ_ima ...
in the wall between the room and the space next to inhale cold air conditioned room to another room without air conditioning?
It is a cheaper option than installing a different air unit ...

Thanks