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2. Solar-powered fan - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_fan

   Solar-powered fan. A solar fan is a mechanical fan powered by solar panels. The solar panels are either mounted on the device or are installed independently. Solar fans mostly do not require secondary power sources other than solar power, as most of them are used for cooling purposes during day time. Some types are also used for heating purposes.

3. Fan (machine) - Wikipedia

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

   A table fan. A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing, or case. [1]

4. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   In the lower middle is the capacitor. Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.

5. This Olympics, The Coolest Accessory Is This Mini Fan Loved ...

   www.aol.com/olympics-coolest-accessory-mini-fan...

   Hoda shared the exact model the two hosts are relying on: it's the Wafting Portable Handheld fan, which is currently 25 percent off for just $29.99. This fan is rechargeable, high speed, and keeps ...

6. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [60]

7. BioLite - Wikipedia

   en.wikipedia.org/wiki/Biolite

   BioLite is a New York City-based startup company that produces off-grid energy products for outdoor recreational use and emerging markets. The company is known for its wood-burning stoves that use thermoelectric technology to create usable electricity from the heat of their fires.