What Is an Ion Fan?


Quick Answer

An ion fan is a fan that has a built-in ionizer that helps trap airborne particles and more effectively clean the air. Many air purifiers and cleaners have ionizers built into their designs.

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Full Answer

When an ionizer is turned on, voltage is applied to built-in needles, creating electrons that discharge into the air and attach to air molecules to form ions. The ions attach to dust, pollen, cigarette smoke, pet dander and other air pollutants to form larger molecules that allow for easier capture by the fan or air purifier's filter. The particles can also fall to the floor or attach to positively charged surfaces in the room.

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