Dual Hose Portable AC

Factual Questions
1

So I bought a portable SINGLE hose AC unit, and found a video of someone converting it into a dual hose, where they had a box covering the intake with a pipe leading from that box on the intake to the outside( the same way the exhaust works, just on the intake port)

So my question is: On my unit, there is an evaporator air intake, and a condenser air intake. Should my newly installed hose be installed on the evaporator intake, or the condenser intake?

Here is the video for reference: Indoor Portable Air Conditioner Efficiency Improvement: single hose to dual hose conversion - YouTube

2

Condenser shoul be hosed to outdoor air. Be prepared for more water if you live in a humid climate.

3

The condenser intake. You want to collect outdoor air for the condenser to dump heat into and send it back outside with the hose you already had (which is the more important one). The evaporator is for cooling air and you want it to deal entirely with indoor air.

4

Ok thanks a lot guys, and yes I live in Australia (very humid) D: