air filter

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air filter

[′er ‚fil·tər]
(engineering)
A device that reduces the concentration of solid particles in an airstream to a level that can be tolerated in a process or space occupancy; a component of most systems in which air is used for industrial processes, ventilation, or comfort air conditioning.

Air filter

A component of most systems in which air is used for industrial processes, for ventilation, or for comfort air conditioning. The function of an air filter is to reduce the concentration of solid particles in the airstream to a level that can be tolerated by the process or space occupancy purpose. See Ventilation

Solid particles in the airstream range in size from 0.01 micrometer to objects that can be caught by ordinary fly screens, such as lint, feathers, and insects. The particles generally include soot, ash, soil, lint, and smoke, but may include almost any organic or inorganic material, even bacteria and mold spores. This wide variety of airborne contaminants, added to the diversity of systems in which air filters are used, makes it impossible to have one type that is best for all applications.

Three basic types of air filters are in common use: viscous impingement, dry, and electronic. The principles employed by these filters in removing airborne solids are viscous impingement, interception, impaction, diffusion, and electrostatic precipitation. Some filters utilize only one of these principles; others employ combinations. A fourth method, inertial separation, is finding increasing use as a result of the construction boom throughout most of the Middle East.

air filter

Any device used to remove solid and/or gaseous pollutants from air.

air filter

i. A filter in the induction system of a reciprocating engine to prevent dust or sand from entering the engine.
ii. A filter in the pneumatic system of aircraft to keep impurities from entering the system.
References in periodicals archive ?
Cabin air filters ensure the supply of clean air in the passenger cabin.
During operation, keep a close eye on the air cleaner indicator or air filter clogged light so you'll know when the element is plugged.
We've been supplying filter products to BMW for more than 17 years and are pleased to be expanding our product offerings further to include our innovative micronAir cabin air filters on the BMW X5 and X6," said Barry Kellar, president and CEO of Freudenberg Filtration Technologies.
Universal Air Filter products meet the following standards and classifications: UL 94 HF-l; UL 900 Class 2 and CE.
Sonic Dry Clean is also offering an air filter element that is warranted after cleaning for up to the operating life cycle of the engine when used in conjunction with the air filter cleaning system counterpart, according to John Hockin of Sonic Dry Clean.
Camfil Farr air filters provide cost-effective solutions for issues pertaining to energy use, air quality, waste reduction, and environmental protection for entities in the installation of their air filtration systems.
Air filters are categorised on the basis of application area as HVAC air filters, gas turbine air filters, automotive air filters, cleanroom air filters and bag house air filters.
2]O), it means the air filter element is dirty and needs to be cleaned.
In this research, Frost & Sullivan's expert analysts thoroughly examine the aftermarkets for particulate cabin air filters and combination cabin air filters.
The site also offers extensive information on how air filters and air cleaners actually go about the work that they perform.
While inspecting M925A1 5-ton trucks, we've noticed what looks like oil in the vehicle's air filter element and air cleaner assembly.
Freudenberg's MicronAir air filters are now featured in three Nissan lightweight trucks--the Xterra, Pathfinder and Frontier.