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  2. 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 .

  3. Do Air Purifiers Actually Work? Here's What Experts Say - AOL

    www.aol.com/air-purifiers-actually-heres-experts...

    As air moves through the filter, pollutants and particles are captured, and the clean air is pushed back out into the living space. Typically, filters are made of paper, fiber (often fiberglass ...

  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 ...

  5. Omron - Wikipedia

    en.wikipedia.org/wiki/OMRON

    Omron was established by Kazuma Tateisi (立石一真) in 1933 (as the Tateisi Electric Manufacturing Company) and incorporated in 1948. The company originated in an area of Kyoto called "Omuro (御室) ", from which the name "Omron" was derived. Prior to 1990, the corporation was known as Omron Tateisi Electronics. During the 1980s and early ...

  6. Smog tower - Wikipedia

    en.wikipedia.org/wiki/Smog_tower

    The H14 grade HEPA Filter, known for being able to clean up to 99.99% of the particulate matter, will be used instead, together with a pre-filter and activated carbon. [27] It is claimed the tower will filter air for up to 75,000 people within a 3-kilometre (1.9 mi) radius. [28] and cleaning more than 32 million cubic metres of air every day. [29]

  7. Choking emergency? How to do the Heimlich maneuver - AOL

    www.aol.com/choking-emergency-heimlich-maneuver...

    Next, thrust in an inward and upward motion on the diaphragm. This will force air out of the lungs and remove the blockage. Repeat these abdominal thrusts up to five times, the doctor advised.

  8. Suspect in UnitedHealth executive murder was not a company ...

    www.aol.com/news/unitedhealth-group-ceo-andrew...

    Ivy League-educated Luigi Mangione was charged with murder on Dec. 9 for the killing of Thompson in a brazen shooting outside a Manhattan hotel before an industry conference, following a five-day ...

  9. Fan filter unit - Wikipedia

    en.wikipedia.org/wiki/Fan_filter_unit

    A fan filter unit (FFU) is a type of motorized air filtering equipment. It is used to supply purified air to cleanrooms, laboratories, medical facilities or microenvironments by removing harmful airborne particles from recirculating air. [1] The units are installed within the system's ceiling or floor grid.