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2. These Top-Rated Exhaust Fans Are Just What Your Musty ... - AOL

   www.aol.com/lifestyle/exhaust-fans-help-control...

   Say goodbye to steamy bathrooms, stuffy garages, or smoky kitchens with the best exhaust fans. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

3. Room air distribution - Wikipedia

   en.wikipedia.org/wiki/Room_air_distribution

   Displacement ventilation systems supply air directly to the occupied zone.The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditorium and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.

4. Louver - Wikipedia

   en.wikipedia.org/wiki/Louver

   Modern louvers are often made of aluminum, metal, wood, or glass.They may be opened and closed with a metal lever, pulleys, or through motorized operators. [4]The Australian Standard specifies requirements for the construction of buildings using louver in bushfire-prone areas in order to improve their resistance to bushfire attack from burning embers, radiant heat, flame contact and ...

5. 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).

6. Fire damper - Wikipedia

   en.wikipedia.org/wiki/Fire_damper

   Interior of German mechanical fire damper inside of a galvanised steel duct. Fire dampers (or fire shutters) are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent and isolate the spread of fire inside the ductwork through fire-resistance rated walls and floors. [1]

7. List of Dyson products - Wikipedia

   en.wikipedia.org/wiki/List_of_Dyson_products

   Around 2020, Dyson discontinued its basic cooling fans in favour of an extended range of combination fan air purifiers, some with optional heating. High-end models feature automatic monitoring of indoor air quality for particulates and volatile organic compound (VOC) contamination, and reporting over Bluetooth or WiFi to a smartphone app. [ 47 ]