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2. 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).

3. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   HVAC ventilation exhaust for a 12-story building An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical, or forced, ventilation is provided by an air handler (AHU) and used to control indoor air quality.

4. Kitchen hood - Wikipedia

   en.wikipedia.org/wiki/Kitchen_hood

   A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [1] In commercial kitchens exhaust hoods are ...

5. Kitchen ventilation - Wikipedia

   en.wikipedia.org/wiki/Kitchen_ventilation

   Kitchen ventilation is the branch of ventilation specialising in the treatment of air from kitchens. [1] It addresses the problems of grease, smoke and odours not found in most other ventilation systems. Restaurant kitchens often use large extractor hoods. Kitchen ventilation equipment includes an extractor hood or canopy, and a filtering system.

6. SpaceX is launching 4 people on a risky mission to fly ... - AOL

   www.aol.com/spacex-launching-4-people-risky...

   Polaris Dawn plans to fly through a radiation belt. Along with Isaacman, the crew includes a former US Air Force pilot named Scott Poteet and two SpaceX engineers, Sarah Gillis and Anna Menon.

7. The best stair lift for 2024: Chair lifts that make ... - AOL

   www.aol.com/lifestyle/best-stair-lift-134610076.html

   Handicare 1100 Straight Stairlift. Best for narrow stairs. $3,495+ at Handicare. The Acorn 130 outdoor stairlift. Best outdoor stairlift. $3,500+ at Acorn Stairlifts. See 3 more. Most older adults ...