... Which operate on the refrigerator principle and thus also much more effective and able to an apartment at refrigerator temperature cool down but also more thirsty for power. Who can already afford to a device to provide a consumption> 1 KW at these energy prices? The fan is a radial fan that are somewhat quieter than their axial counterparts, the operating noise is about the microwave, so it is not suitable for the bedroom, at least if you want to sleep in it. There are three shift stages and you can set vertical slats in front of 40º - can pivot angle separately switchable. The cooling is also separately switchable and makes use of the evaporative cooling effect is used, the water has no ice a temperature difference of about 5 ° C to room temperature. The included ice packs are meant nice, but have little effect on their size (200 ml, in the water tank are between 1 and 4 liters of water), especially as it lt. Description 24 hours to lay in's Tiefkülfach (3 hours but also extend) but then (an hour) to thaw again in the shortest possible time, because they are meant for cold boxes and not for it into the water diving. You can buy a couple of matching batteries of course, but it is to use more effectively ice, especially since the relatively fast manufactured (about 2 to 3 hours) and almost everyone now has a freezer or a fridge, maybe even someone an ice maker :-). 800 Gr. Ice (these are three of the commercially available forms) keep 1 to 2 hours, the water up to 10 ° C below room temperature. The air is drawn through a the entire back wall engaging filter which is moistened at the same time by a small pump with water, thus you automatically an air cleaning effect. When adding the water a little washing-up liquid, which gives the air more fresh and, incidentally, makes it easier to keep clean and the cleaning. A noticeable change of the indoor climate in a 25 square meter room with an east-facing window with direct sunlight was morning noticing with level 1 within an hour, after 8 hours, the temperature was at 24 ° C (increased else to 30 ° C and more), the Humidity increased from 35% to dry healthy 60%, power consumption 0.3 kWh, water consumption 2.5 l Recommendation. night air, the morning close the windows and turn on equipment, then one has to Feierabend a refreshingly cool apartment. Other: Energy consumption is between (measured) 35 and 55 watts. There is no mention, however, is very important; the Befeuchtungsgitter can be taken out for cleaning. This is the water tank unfortunately not possible because the water pump is permanently installed in it, he can be pulled out about 10 cm, which makes cleaning difficult something to drain the water has a rubber stopper, the water level can be seen through an opening at the front. In the mobility you have to be a little careful, the water reservoir is open at the top. Unfortunately, there is no cut-off when dry Walking, unattended operation should avoid or use a timer, the water tank reaches a maximum filled for about 12 hours operation. Conclusion: For our temperatures (yet) sufficiently highly recommended.