Janela is a more classic option,
which is very easy to install on the wall.
The Portable is great for those who want a single device to cool different rooms,
since it doesn't need to be stuck in one place
alone and can be transported from the living room to the bedroom,
for the kitchen and even when traveling in a practical way.
Oh, and it doesn't depend on construction or renovations to use it, just plug it in and that's it!
Now, Split is the most common.
It is divided into two parts, one of which is inside the room and the other outside. It is very silent and, therefore, can even be placed
in waiting rooms, clinics, hotels,
classroom and many other environments.