My parents bought this "air conditioner", but I am very skeptical that this can cool a room, or even cool anything.
I doubt that it even has a cooling element, I suspect that it is just a fan + humidifier.
But even if this device had a cooling element, it still couldn't cool a room:
If air is cooled, the resulting heat can't just vanish, it has to go somewhere, because of the 1st law of thermodynamics (energy conservation). In a normal full-sized air conditioner, the air is cooled and the resulting hot air is blown outside. But in this mini "air conditioner", the heat cant go outside, it can only stay in the room, keeping the room at the same temperature.
Am I missing something or is this a scam as I suspected?
In response to a comment: I'm interested in using this cooler in Germany, where the relative humidity is typically 70%.