You’re correct Erasmus, the condenser is outside and the evaporator is inside, outside air stays outside and inside air stays inside. The only thing that circulates is liquid refrigerant to the evaporator (inside) and gaseous refrigerant to the condenser (outside).
Are you talking about a regular window unit, or one that is physically split between evaporator (indoors) and condensor (outdoors) and compressor (one place or the other) with extended freon lines between the two?
I think Sherman and I are talking about the kind that whose mechanism (compressor, evaporator, condensor, two blowers) entirely indoors (usually in a big box on casters) and it has only a large airhose that goes to the window.
Muwiyah got one of these whose hose had two channels in it, which allowed there to be an entirely separate outside air circuit, which is how I assumed they were all built.
Sherman’s unit evidently wasn’t built this way, which would have to be, unfortunately, a ripoff.