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2. Fan (machine) - Wikipedia

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

   Axial fans with five-inch (125 mm) impellers are also used in larger bathrooms, though they are much less common. Domestic axial extractor fans are unsuitable for duct runs over 3 m or 4 m, depending on the number of bends in the run, as the increased air pressure in longer pipework inhibits the fan's performance.

3. Turning vanes (HVAC) - Wikipedia

   en.wikipedia.org/wiki/Turning_vanes_(HVAC)

   HVAC turning vanes are sheet metal devices inside of mechanical ductwork used to smoothly direct air inside a duct where there is a change in direction, by reducing resistance and turbulence. See also

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. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

6. HuffPost - Breaking News, U.S. and World News | HuffPost

   www.huffingtonpost.com/news/bill-clinton/2

   Read the latest headlines, news stories, and opinion from Politics, Entertainment, Life, Perspectives, and more.

7. I’m a Financial Planner: This Psychological Hack Is ‘Key’ To ...

   www.aol.com/m-financial-planner-psychological...

   If you have had trouble saving for retirement, putting money away for a down payment, creating a budget, saving for family vacation or other money goals, don't feel too bad, said Brad Klontz, a...