Swamp coolers “rely on the flow of air through ... in a window to heat a specific room in your home, and small, portable evaporative coolers on wheels are now available. On the other hand ...

This is similar, but acts more like an evaporative cooler ... very portable and perhaps backpackable as well. [Figjam] took a 5 gallon bucket, wrapped the inside with two layers of swamp cooler ...

Also known as “swamp coolers,” evaporative coolers produce a cool ... but our recommendations focus on more affordable, portable units meant for garages or screened-in sunrooms.