Do us this "air coolers" for a small room 16sqm provided. Despite filling of very cold water and the addition of more ice packs (also included) they had the air out of the device did not come cooler than a fan. In addition, the floor at the site was where the unit was significantly warmer after a few minutes.
The device is not recommended, because you can also provide 15 fans into the room for the money, makes colder !!