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Ionic Air Purifier – How Negative Ions clean air

Air purifying ionisers work at an invisible molecular level to create and emit a stream of negatively charged ions to your living space.  These negative charges attach themselves to the surrounding airborne dust particles both unhealthy, which mostly have a positive charge, as well as harmless inert molecules.  Positively charged molecules have been shown to be synonymous with unhealthy physical and mental environments and will consist of allergens, bacteria, viruses, molds, animal dander and so on.  Unpleasant odors and contaminants from chemicals, cooking and tobacco smoke are also reduced and removed.

Electrically charged metal plates
Special electrically charged plates are built into many of the ionizer appliances.  These then attract a high percentage of airborne molecules to them and out of harms way.  These plates then need to be occasionally cleaned.  Some molecules – ones that are not drawn to the ionizer’s electrostatic plates - start clinging together forming larger and larger particles until they become too heavy to stay in the air and fall to the floor.  This is the main process of airborne particle elimination for ionic air cleaners without electrostatic metal plates.  The dust can then be removed during the routine household vacuum cleaning.  It is not recommended to sweep floors as this introduces more dust back into the air.  One needs to be aware that movement in the room does cause the dust to rise but the ionizer will continue to resettle and remove this.

Negative ions – How are they created?
A negative ion is simply a molecule with one or more additional electrons (negatively charged sub-atomic particles) attached to it.  Air purifying ionisers are able to add an extra electron to neutral (electrically-balanced) molecules and beam these out into your room or wherever the appliance is placed.  These negatively charged molecules are called negative ions.  If a (negatively charged) electron becomes detached from a neutral molecule, it becomes positively charged and is called a positive ion.
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