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2. Window fan - Wikipedia

   en.wikipedia.org/wiki/Window_fan

   A small twin window fan with thermostat A large single whole-house window fan with three-speed control and intake/exhaust switch The same fan, in operation. A window fan is a fan designed to be placed inside the frame of a window. Window fans have been used for many decades to maintain comfortable temperatures and ventilation within one's home ...

3. Fan (machine) - Wikipedia

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

   The motor is either hidden in the fan's center hub or extends behind it. For big industrial fans, three-phase asynchronous motors are commonly used, may be placed near the fan, and drive it through a belt and pulleys. Smaller fans are often powered by shaded pole AC motors, or brushed or brushless DC motors. AC-powered fans usually use mains ...

4. Whole-house fan - Wikipedia

   en.wikipedia.org/wiki/Whole-house_fan

   A typical whole-house fan, with louvers closed when not operating. A whole house fan is a type of fan, commonly venting into a building's attic, designed to circulate air in an entire house or other building. The fan removes hot air from the building and draws in cooler outdoor air through windows and other openings.

5. Attic fan - Wikipedia

   en.wikipedia.org/wiki/Attic_fan

   On some attic fans, grounding is achieved through a screw mounted on the thermostat box of the attic fan. The grounding wire is attached to the box via the screw and thereby grounds the external metal components. Most modern attic fans have this as well as a grounding wire connected directly to the motor, thereby ensuring all parts are grounded.

6. 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.

7. Zepbound Weight Loss Medication Approved by FDA to Treat ...

   www.aol.com/fda-approves-weight-loss-medication...

   The weight loss drug Zepbound, generically known as tirzepatide, is also now an approved medication to treat obstructive sleep apnea, per a Food and Drug Administration Dec. 20 press release.. The ...