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2. 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.

3. The best air purifiers of 2025 - AOL

   www.aol.com/lifestyle/best-air-purifiers...

   HEPA Filters: High-efficiency particulate air filters are certified to remove at least 99.97% of particulates that are .3 microns in diameter on the low end (H10) and up to 99.995% of particulates ...

4. 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.

5. Air filter - Wikipedia

   en.wikipedia.org/wiki/Air_filter

   Air filters are used in applications where air quality is important, notably in building ventilation systems and in engines. Some buildings, as well as aircraft and other human-made environments (e.g., satellites , and Space Shuttles ) use foam, pleated paper, or spun fiberglass filter elements.

6. Ultra-low particulate air - Wikipedia

   en.wikipedia.org/wiki/Ultra-low_particulate_air

   Ultra-low particulate air (ULPA) is a type of air filter. A ULPA filter can remove from the air at least 99.999% of dust , pollen , mold , bacteria and any airborne particles with a minimum particle penetration size of 120 nanometres (0.12 μm , ultrafine particles ).

7. HEPA - Wikipedia

   en.wikipedia.org/wiki/HEPA

   HEPA filters are designed to arrest very fine particles effectively, but they do not filter out gasses and odor molecules. Circumstances requiring filtration of volatile organic compounds, chemical vapors, or cigarette, pet or flatulence odors call for the use of an activated carbon (charcoal) or other type of filter instead of or in addition to a HEPA filter. [20]