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  2. Hand fan - Wikipedia

    en.wikipedia.org/wiki/Hand_fan

    Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.

  3. 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 ...

  4. Industrial fan - Wikipedia

    en.wikipedia.org/wiki/Industrial_fan

    The axial fan is often contained within a short section of cylindrical ductwork, to which inlet and outlet ducting can be connected. Axial fan types have fan wheels with diameters that usually range from less than a foot (0.3 meters) to over 30 feet (9.1 m), although axial cooling tower fan wheels may exceed 82 feet (25 m) in diameter.

  5. Cooling tower - Wikipedia

    en.wikipedia.org/wiki/Cooling_tower

    A typical evaporative, forced draft open-loop cooling tower rejecting heat from the condenser water loop of an industrial chiller unit Natural draft wet cooling hyperboloid towers at Didcot Power Station (UK) Forced draft wet cooling towers (height: 34 meters) and natural draft wet cooling tower (height: 122 meters) in Westphalia, Germany Natural draft wet cooling tower in Dresden (Germany)

  6. The 12 Best Cool-Mist Humidifiers That Will Become the Unsung ...

    www.aol.com/12-best-cool-mist-humidifiers...

    Amazon. When you (or your kiddos) have a stuffy nose, switch on this Vicks humidifier. It has a wide 4.54 liter tank for up to 30 hours of misting, an adjustable nozzle and adjustable mist ...

  7. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    A misting fan is similar to a humidifier. A fan blows a fine mist of water into the air. If the air is not too humid, the water evaporates, absorbing heat from the air, allowing the misting fan to also work as an air cooler. A misting fan may be used outdoors, especially in a dry climate. It may also be used indoors.