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2. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Ceiling fans were proven to have a more significant effect on the droplet and airborne transmission when the coughing infected person is located directly under the ceiling fan. Ceiling fans offer better protection from cough exposure for people located closer to the fan center, where the directed airflow changing particle trajectory downward to ...

3. Punkah - Wikipedia

   en.wikipedia.org/wiki/Punkah

   Punkahs in the house of a British couple in India c. 1880 A punkah in the house of French colonials in Indochina c. 1930 Church interior with an intricate system of punkahs c. 1900. A punkah, also pankha (Urdu: پَنکھا, Hindi: पंखा, paṅkhā), is a type of fan used since the early 6th

4. Why Are Vaulted Ceilings So Controversial? Experts Weigh In - AOL

   www.aol.com/vaulted-ceilings-why-controversial...

   Today, vaulted ceilings are commonly found in contemporary homes. “A vaulted ceiling extends upward from the walls to a center, creating a volume of space overhead,” says Jade Joyner ...

5. Casablanca Fan Company - Wikipedia

   en.wikipedia.org/wiki/Casablanca_Fan_Company

   Casablanca Fan Company is a ceiling fan subsidiary currently based in Memphis, Tennessee. In the late 1970s, the company became known for their premium and luxury ceiling fans, which were marketed as furniture.

6. 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."

7. Thermal destratification - Wikipedia

   en.wikipedia.org/wiki/Thermal_destratification

   Because axial fans are designed to blow air straight down at the floor, they can be used in ceiling and roof structures over 100 ft. tall. Because axial destratification fans can achieve destratification with low CFMs, it is imperative that the air leaving the nozzle achieve an air speed at the floor of between 0.2 and 0.5 m/s.