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2. High-volume low-speed fan - Wikipedia

   en.wikipedia.org/wiki/High-volume_low-speed_fan

   A High-volume low-speed fan. A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than 7 feet (2.1 m) in diameter. [1] HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed."

3. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   Air is moved by a centrifugal fan or blower (usually driven by an electric motor with pulleys known as "sheaves" in HVAC terminology, or a direct-driven axial fan), and a water pump is used to wet the evaporative cooling pads. The cooling units can be mounted on the roof (down draft, or downflow) or exterior walls or windows (side draft, or ...

4. These Top-Rated Cooling Fans Will Keep You Sane During the ...

   www.aol.com/top-rated-cooling-fans-keep...

   With tons of speed settings, adjustable heights, and remote controls, these cooling fans will help you find instant relief during the hottest nights of summer.

5. The 9 Best Cooling Fans to Help You Survive the Summer Heat Wave

   www.aol.com/9-best-cooling-fans-help-100000841.html

   PureWow Editors select every item that appears on this page,, and the company may earn compensation through affiliate links within the story You can learn more about that process here. Yahoo Inc ...

6. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   A pendulum fan or flap fan is a type of low velocity ceiling fan that can be used for air circulation around a targeted area. The back and forth motion increases turbulence around cooling sources, like chilled waterfalls at the Lavin Bernick Center at Tulane, helping to cool a greater volume of air. Brushed DC ceiling fans.

7. Refrigeration - Wikipedia

   en.wikipedia.org/wiki/Refrigeration

   In the cooling step on the inside of the refrigerator, the g state particle absorbs energy from ambient particles, cooling them, and itself jumping to the e state. In the second step, on the outside of the refrigerator where the particles are also at an e state, the particle falls to the g state, releasing energy and heating the outside particles.