The 8000m3 outdoor AC or desert air cooler is the most commonly used cooler in the UAE, but I can provide information on its specifications and usage.

The 8000m3 outdoor AC or desert air cooler is a type of air conditioning system designed for use in outdoor environments, particularly in hot and dry climates like the UAE. It is also known as an evaporative cooler or swamp cooler.

This type of cooler uses water to cool the air, which is then circulated using a fan. The water evaporates as it passes over a cooling pad, which cools the air that is then pushed out of the unit. The cooled air is then circulated around the space where the cooler is located.