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2. B. F. Sturtevant Company - Wikipedia

   en.wikipedia.org/wiki/B._F._Sturtevant_Company

   A Sturtevant Company ventilation system installed at a Montreal lumber planing mill, c. 1920 Sturtevant died in 1890 and his son-in-law, Eugene Foss , took over the business. After a 1901 fire, the plant was moved to Hyde Park, Massachusetts in 1903, into a new ten-building, 20-acre (8.1 ha) facility designed by Lockwood, Greene & Co.

3. 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.

4. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).

5. Fan (machine) - Wikipedia

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

   A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating 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 ...

6. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   Small air handlers, for local use, are called terminal units, and may only include an air filter, coil, and blower; these simple terminal units are called blower coils or fan coil units. A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit (MAU) or fresh air handling unit (FAHU).

7. Dust collector - Wikipedia

   en.wikipedia.org/wiki/Dust_collector

   They are usually used for general ventilation or dilution ventilation and are good in developing up to 0.5 in. wg (124.4 Pa). Tube-axial fans - Tube-axial fans are similar to propeller fans except they are mounted in a tube or cylinder. Therefore, they are more efficient than propeller fans and can develop up to 3 to 4 in. wg (743.3 to 995 Pa).