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2. Air shower (physics) - Wikipedia

   en.wikipedia.org/wiki/Air_shower_(physics)

   Air shower detected in a cloud chamber. Air showers are extensive cascades of subatomic particles and ionized nuclei, produced in the atmosphere when a primary cosmic ray enters the atmosphere. Particles of cosmic radiation can be protons, nuclei, electrons, photons, or (rarely) positrons. Upon entering the atmosphere, they interact with ...

3. 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).

4. Ventilation (architecture) - Wikipedia

   en.wikipedia.org/wiki/Ventilation_(architecture)

   Air can be exhausted through pressurized hoods or the use of fans and pressurizing a specific area. [35] A local exhaust system is composed of five basic parts: A hood that captures the contaminant at its source; Ducts for transporting the air; An air-cleaning device that removes/minimizes the contaminant; A fan that moves the air through the ...

5. You can find huge savings in Amazon's secret overstock ... - AOL

   www.aol.com/lifestyle/you-can-find-huge-savings...

   Its powerful suction and maximum 45 minutes of run time allow you to quickly and efficiently zap dust, pet hair and crumbs from your floors, while the built-in filtration system helps purify the air.

6. You can get deals starting at $4 in Amazon's secret ... - AOL

   www.aol.com/lifestyle/you-can-get-deals-starting...

   This vac punches well above its weight, thanks to super-strong 2000Pa of suction power to lift up dirt, grime and debris that’s lurking on your carpets and rugs. You can then set it to mop for a ...

7. Space toilet - Wikipedia

   en.wikipedia.org/wiki/Space_toilet

   Near the funnel's rim are small holes or slits that allow air movement to prevent excessive suction. The vacuum chamber is a cylinder about 1-foot (30 cm) deep and 6 inches (15 cm) wide with clips on the rim, where waste collection bags may be attached and a fan that provides suction. Urine is pumped into and stored in waste storage drawers.