Standard air conditioners work with a compressor and refrigerant technology. They compress the air taken from the atmosphere, condition it, and release the water and hot air outside. But in ventless or windowless air conditioners, there is no need for a compressor or refrigerant.
So, how do they work, you might be wondering?
Well, ventless air conditioners are pretty nifty when it comes to their design. They have a small compartment for water storage. You add water to the tank, and once you turn it on, it evaporates the water and throws cool air into the room. Hence, it cools down the environment to comfortable levels.
And the best part is, there are no restrictions regarding where you can place a windowless AC.
Unlike splits and window AC, you can place ventless AC anywhere. You only need to take caution of the humidity levels of a room (and if a unit can handle such an area), but other than that, ventless air conditioners are pretty much portable.