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The reasons why Dynamic electronic air
cleaners work so much better compared to other air cleaners
and filters is because they take advantage of three scientific
filtration principles combined into one product to trap
unwanted and harmful particulate. The three scientific
principles at work in Dynamic electronic air cleaners are
Impingement, Polarization and Agglomeration. Virtually every
other filtration media type filters use only impingement. The
combination and benefits of combining these three principles
is explained below.
#1) Impingement
Impingement is the process that all media filters use to trap
dust. Simply stated, in order to trap particles the
impingement process relies on media being placed in the path
of oncoming airborne particulate and striking the particulate
as it flows by in an effort to stop it. The degree of
effectiveness of this method depends on the amount of material
contained in the media filter placed in the path of these
oncoming airborne particulate.
Commercial filters using this type of process cover the entire
range of efficiencies. The finer and more dense the media used
the greater the efficiency. High efficiency particulate air (HEPA)
filters have high efficiencies along with very dense fiber
packing, however the big tradeoff associated with these
filters is significantly reduced volume of filtered air - all
things being equal.
Impingement type filters always have a built-in compromise
between air flow and efficiency. The greater the efficiency of
the filter, the lower the volume of air that is filtered. The
greater the flow of air the lower the efficiency except in the
case of Dynamic electronic air cleaners which also use
polarization and agglomeration to trap particulate.
Dynamic's unique induced polarized media air filters are the
exception to this principle. Dynamic electronic air cleaners
are not subject to compromise between air flow and high
efficiency, and therefore meet the demand for increased air
flow AND high efficiency.
#2) Polarization
The second major scientific principle used in Dynamic
electronic air cleaners is polarization. It is well known that
an electrical charge will have an influence on any substance
that comes in proximity to the charge. Dynamic induced
polarization takes advantage of this principle to greatly
enhanced the effectiveness of the filtration media.
In the case of Dynamic electronic air cleaners, a strong but
harmless (6000 volt) charge is established on a screen within
the filter media itself. Very close to this static charge and
directly influenced by it is the fiber filtering media through
which the airborne particulate must travel. As a direct result
of this static charge, the fibers and the airborne particles
that come close to them take on an induced electrostatic
charge known as a “POLARIZED” charge. As a result the
polarized airborne particles are drawn together with the fiber
media in the same way polarized magnets are drawn together
when held close to each other. The strong attraction is both
certain and powerful. With tens of thousands of charged fiber
strands in each filter the efficiency of this polarized
process is greatly enhanced. In addition, as each particle
attaches itself to the fiber strands it in turn becomes part
of the collection process thereby increasing the effectiveness
of the filter as it loads. Any particles that may escape
through the influence of the polarized filter media travel
through the system without any residual charge and are
returned again to be filtered out on subsequent passes. This
polarization process accounts for a significant portion of the
high filtering efficiency of all Dynamics electronic air
cleaners.
#3) Agglomeration
Airborne particles as explained above enter the Dynamic
electronic air cleaner and are polarized by the induced static
charge and take on characteristics of millions of tiny
magnets. As a result four distinct possibilities can occur:
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These magnetized particles can attach
themselves to the charged fiber strands in the filter.
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They can strike or become attached to each
other and form larger particles. (Agglomeration)
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These larger (Agglomerated) particles can
become attached to the fiber filter strands.
-
The particles may pass through the filter
and AGGLOMERATE and be captured on subsequent passes.
The combination of induced electrostatic
polarization along with the process of agglomeration makes the
Dynamic electronic air cleaner completely unique and a highly
efficient air cleaner and in many cases, compares quite
favorably with a HEPA filter. This is achieved with its very
low resistance to air flow. To all this you can order the
optional fiber mesh replacement pads with an activated carbon
center screen to ensure you have a potent electronic air
cleaning device !
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