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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.
(Induced polarization causes media to act like large magnets)
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.
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.
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:
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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