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A modern Purolator oil filter. The company was founded in 1923 as Motor Improvements, Incorporated in New York City. The company's Purolator (initially stylized PurOlator and sometimes Pur-O-Lator) oil filtration device, invented in 1922 by Ernest John Sweetland and George H. Greenhalgh, was standard equipment on early 1920s Chrysler automobiles after being launched on the Chrysler Six.
Purolator Inc. is a Canadian courier majority owned by Canada Post. It was founded as Trans Canada Couriers, Ltd and acquired in 1967 by Purolator, a US manufacturer of oil and air filters. [3] In 1987, the company returned to Canadian ownership. Although it retained the Purolator name, it has had no connection with the oil filter business ...
Purolator International (formerly Purolator Courier US, Ltd. and then Purolator USA, Inc.) is a US-based freight forwarder that provides cross border logistics services between the United States and Canada. Headquartered in Jericho, New York, the company is a subsidiary of Canada-based Purolator Inc. Purolator International was previously known ...
The NIOSH air filtration rating is the U.S. National Institute for Occupational Safety and Health (NIOSH)'s classification of filtering respirators. The ratings describe the ability of the device to protect the wearer from solid and liquid particulates in the air. The certification and approval process for respiratory protective devices is ...
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 ). A ULPA filter can remove—to a large extent but not 100%—oil smoke, tobacco ...
A particulate air filter is a device composed of fibrous, or porous materials which removes particulates such as smoke, dust, pollen, mold, viruses and bacteria from the air. Filters containing an adsorbent or catalyst such as charcoal (carbon) may also remove odors and gaseous pollutants such as volatile organic compounds or ozone. [1]
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