What is Negative Ions?

A negative ion is a negatively charged atom, molecule or complex molecule having more than its normal amount of electrons. You cannot see this tiny object with the naked eye nor feel it. However, it is used widely nowadays like negative ion generators (ionizers) to air conditioners, hair driers, home appliances, clothing, bedding and so on.
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How to Choose an Air Purifier

Compared with outside air quality, we should pay much more attention to the indoor air quality especially at our home, because we spend most time of a day at home. Under this condition, choosing a suitable air purifier is critically important....
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