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  2. Portable Swamp Coolers That Lower Temps (and Energy Costs)

    www.aol.com/portable-swamp-coolers-lower-temps...

    A portable swamp cooler can lower the temperature by as much as 20 degrees, but that depends on how powerful the unit is and how hot and humid the weather is. A small tabletop or cheap floor unit ...

  3. Editors Say These Neck Fans Kept Them Cool During the Hottest ...

    www.aol.com/8-best-wearable-air-conditioners...

    Portable Neck Fan. Civpower’s Portable Neck Fan is one of the best-reviewed and best-selling models on Amazon. The simple design features 78 air outlets and three selectable fan settings so you ...

  4. Desperate to figure out how to stop a hot flash, fast? Try this.

    www.aol.com/lifestyle/how-to-stop-a-hot-flash...

    3-IN-1 portable Hand Fan ... towel against your skin to draw away heat and give you an immediate cooling effect. $15 at Amazon ... rechargeable hand-held fan is perfect for on-the-go cooling, and ...

  5. Fan (machine) - Wikipedia

    en.wikipedia.org/wiki/Fan_(machine)

    An axial box fan for cooling electrical equipment. Axial-flow fans have blades that force air to move parallel to the shaft about which the blades rotate. This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in cooling towers. Axial flow fans are applied in air ...

  6. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.

  7. Laptop cooler - Wikipedia

    en.wikipedia.org/wiki/Laptop_cooler

    Some active coolers draw heat from the underside of the computer; others work in the opposite way – by blowing cool air towards the machine. The fan speed is adjusted manually or automatically on certain models and on others stays at a fixed speed. Poorly designed coolers may use fans which draw more current than allowed by the USB standard ...