A ''real'' aircon unit must have a way of taking the heat from inside the house and moving it to outside, therefore if it is a portable one it must have a pipe which you put outside through a door or window for it to blow the hot air out, any kind of aircon/cooler unit which just stands inside is really just moving heat around from one place to another to give the feeling that it is doing something, but if one part of a room gets cooler the other parts will get hotter.
The type which contain ice do actually cool the room but you have to manufacture the ice with your freezer first, and then you will still have the same problem with more moisture going into the room.... and also your freezer will be making more heat in the house while it is making the ice.