What is the difference between portable air conditioners and air coolers?
Air coolers use moisture, like a swamp cooler, to cool an area. This makes them quite a bit less effective in areas that are already humid, and they have a smaller cooling radius. On the other hand, they can often double as humidifiers. A portable air conditioner actually cools the air with a Freon system and generally has a larger cooling radius than an air cooler.
