The cold refrigerant is circulated into winding tubes passing through two partitions with hundreds of tightly spaced thin vanes to absorb the heat of the air coming from the room very quickly.
The numerous blades create Maxim contact for the warm room air.
Then, after the room air has given much of its heat to the evaporative coil it gets recycled back to the room.
Optimally the temperature of the air returning to the room should be around 5-degrees Celsius.
In the phote the insulated copper line brings the cold refrigerant from the condenser and cycles is through the thin aluminum pipes. The Evaporative coil is installed in the air-conditioning ducting in a position that all the room air is pumped through it.