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  2. Heating, ventilation, and air conditioning - Wikipedia

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

    Clean air delivery rate (CADR) is the amount of clean air an air cleaner provides to a room or space. When determining CADR, the amount of airflow in a space is taken into account. For example, an air cleaner with a flow rate of 30 cubic metres (1,000 cu ft) per minute and an efficiency of 50% has a CADR of 15 cubic metres (500 cu ft) per minute.

  3. GPS Air - Wikipedia

    en.wikipedia.org/wiki/GPS_Air

    Founded in 2008 in Savannah, Georgia, GPS Air was created as an air purification sales company focused on "needlepoint bi-polar cold plasma" as the primary function of its products. In October 2018, the company was purchased by the investment firm Falfurrias Capital Partners and had its headquarters moved to Charlotte, North Carolina .

  4. Air filter - Wikipedia

    en.wikipedia.org/wiki/Air_filter

    In the early 20th century (about 1900 to 1930), water bath air cleaners were used in some applications (cars, trucks, tractors, and portable and stationary engines). They worked on roughly the same principles as oil bath air cleaners. For example, the original Fordson tractor had a water bath air cleaner. By the 1940s, oil bath designs had ...

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  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  7. Dust collector - Wikipedia

    en.wikipedia.org/wiki/Dust_collector

    A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle high-volume dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning system, and a dust receptacle or dust removal system.

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