This would work here in Tunisia too :
The principles of its operation are simple: The fan creates an air flow which is cooled by contact with the 4 bottles full of ice. In this way, the temperature of the air flow is reduced to a more tolerable level. The more bottles the better… You must closely watch it unless you want a swimming pool on your carpet or floors.
One of my collegues have already used a similar system, but with a plastic bag containing ice, he said that It worked wonderfully and that he was able to sleep while the 46°C buring all desire for a little rest.
Source [PcNews Romania]