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  2. Air filter - Wikipedia

    en.wikipedia.org/wiki/Air_filter

    A particulate air filter is a device composed of fibrous, or porous materials which removes particulates such as smoke, dust, pollen, mold, ...

  3. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

  4. HEPA - Wikipedia

    en.wikipedia.org/wiki/HEPA

    HEPA (/ ˈ h ɛ p ə /, high efficiency particulate air) filter, [1] also known as a high efficiency particulate arresting filter, [2] is an efficiency standard of air filters. [ 3 ] Filters meeting the HEPA standard must satisfy certain levels of efficiency.

  5. The Best Air Purifiers To Clean The Air Inside Your Home - AOL

    www.aol.com/news/best-air-purifiers-clean-air...

    We asked experts about the importance of improving indoor air quality, then reviewed Consumer Reports to help you figure out what your home needs. The Best Air Purifiers To Clean The Air Inside ...

  6. 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.

  7. Filtration - Wikipedia

    en.wikipedia.org/wiki/Filtration

    Compressed breathing air production, where the air passes through a particulate filter before entering the compressor, which removes particles likely to damage the compressor, followed by droplet separation after post-compression cooling and final product adsorption filtration to remove gaseous hydrocarbons contaminants and excessive water vapour.

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