Air Filters Types and Terms
Types of Air Filters
- remove a range contaminants from the air.
- are
air filters that can handle rapid movement of air through a confined
space. Automobile intake filters are often made of fibrous materials
that allow the air to flow as freely as possible, yet capture essential
contaminants.
- are filters that are treated with an antimicrobial
agent, which prevents growth on the filter media.
- use carbon, a natural, non-metallic material
that is very effective for removing gases and odors. Also called "active" or "activated
carbon filters," these filters are particularly suitable for
removing chemicals from the air, because carbon can absorb up to
60% of its own weight in gas.
- have
various components with different temperature limits and are used in
applications that need a temperature resistant material.
- are
used in conjunction with a compressed air system. These systems are
often utilized in workshops and warehouses in which high pressure air
is used as a cleaning and dust removal tool.
- work by charging the dust particles in the air,
which attracts them to the metal plates in the filter.
- were originally
designed to prevent discharge of radioactive particles from nuclear
reactor facility exhausts. These filters are now widely used in
industrial settings because of their high efficiency of capturing
a wide range of air contaminants.
- are
filters that are used in an industrial or domestic heating ventilation
or air conditioning system.
- are made up of tiny interlocking cells that
trap and distribute dirt particles throughout the entire volume
of the foam. Foam filters are often used in automobile intake systems.
- are
used to filter the air from hazardous gasses.
- attract
grease laden air away from heat sources, such as commercial ovens.
Grease filters are often made of stainless steel.
- are
used in spray booths to remove waste paint and dust particles from
the workspace.
- are
filters that are folded to allow for more surface area to be exposed
within a smaller area of a filter frame.
Air Filter Terms
-
The retention of gas, liquid or solid on a surface due to positive interaction/attraction
between the surface and the molecules of the adsorbed material.
- A term that refers
to any particles or substances floating in the air.
- A current of air.
- A normal substance
that causes an acute defensive reaction in a person's immune system.
- An air filter's
ability to remove synthetic dust from the air during a test.
- A backward surge
of pressure from downstream to upstream of an air filter. Backpressure
can be the result of closing a valve or air entrapped in a liquid system.
- International
professional designation available through training and testing by the
Association of Energy Engineers (AEE).
- Family
of chemicals used as refrigerants, being tightly regulated and phased
out of production due to stratospheric ozone depletion potential. Examples:
R-11, R-12, R-113, R-114, R-115.
- The prevention
of an agent from being transmitted from one point to another.
- An unwanted
intrusion, such as harmful airborne particles.
- The removal
of unwanted airborne particles to neutralize the air.
- The permeable
material that removes particles from a substance being filtered.
- Particles
passing through an air filter without being removed from the air stream.
- The product that
is filtered.
- A term
that refers to the amount of pollutants in the air within a confined space.
- A filament, grid or
porous body in an ion engine or other device that strips an electron from
the outer shell of a neutral atom to form a positively charged ion.
- A continuous matrix
with pores of defined size.
- Pressure
in an area that is responsible for the inflow of air.
- A molecule containing
three atoms of oxygen. Ozone is harmful to both humans and plants at ground
level, but is crucial in blocking ultraviolet radiation in the stratosphere.
- A very small solid
suspended in air or water that can vary in size, shape, density and electrical
charge.
- Pressure
in an area that is responsible for the outflow of air.
- In the case
of air filters, a measure of the resistance of air to flow through a filter.
- The direction that
is in opposition to the airflow.