But do portable air conditioners ... Several much cheaper models are advertised online as portable air conditioners, but they are actually evaporative coolers or swamp coolers that use water ...

How Do Evaporative Coolers Work? Evaporative coolers function ingeniously ... It is energy-efficient and not only reduces your electricity bills but it is more environmentally friendly as well. 3. It ...

Many swamp coolers ... home -- and they work outdoors, too. Another huge perk is that they don't need to be in or near a window, nor do they require a venting hose, like a portable air conditioner.