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  2. 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.

  3. Air-mixing plenum - Wikipedia

    en.wikipedia.org/wiki/Air-mixing_plenum

    Air streams are mixed to save energy and improve energy efficiency by partially recirculating conditioned air.. The most common application for an air-mixing plenum is the mixing of return air (or extract air) with fresh air to provide a supply air mixture for onward distribution to the building or area which the ventilation system is serving. [1]

  4. Displacement ventilation - Wikipedia

    en.wikipedia.org/wiki/Displacement_ventilation

    Displacement ventilation is best suited for taller spaces (higher than 3 meters [10 feet]). [2] Standard mixing ventilation may be better suited for smaller spaces where air quality is not as great a concern, such as single-occupant offices, and where the room height is not tall (e.g., lower than 2.3 meters [7.5 feet]).

  5. Corsi–Rosenthal Box - Wikipedia

    en.wikipedia.org/wiki/Corsi–Rosenthal_Box

    An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

  6. Plenum chamber - Wikipedia

    en.wikipedia.org/wiki/Plenum_chamber

    A plenum chamber is a pressurised housing containing a fluid (typically air) at positive pressure. One of its functions is to equalise pressure for more even distribution, compensating for irregular supply or demand. It is typically relatively large in volume and thus has relatively low velocity compared to the system's other components.

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  8. Consumer Reports: Best upright vacuums of 2022 - AOL

    www.aol.com/news/consumer-reports-best-upright...

    Dyson Ball Animal 2 $499.99 at Amazon. Dyson Ball Animal 2 $499.00 at Home Depot. Dyson Ball Animal 2 $499.00 at Abt. Kenmore Pet Friendly Cross-Over DU3017. CR's take: A recent addition to our ...

  9. Best noise-canceling headphones, according to Consumer Reports

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    SEE ALL Consumer Reports product reviews. ... Anker SoundCore Life Q20 $53.99 at Amazon. Anker SoundCore Life Q20 $54.99 at Walmart. Portability for Bargain Hunters 1MORE ComfoBuds Pro.

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