In home appliance market, there are so many kinds of air purifier, people really get confused about which one to buy. Usually air purifiers is distinguished by their filter types. There are HEPA filters, Ozone generators and Activated carbon filter. The regular HEPA filter can remove most particles in the air by collecting them in the filter, and Ozone generators can eliminate particles by gather them together and make them cling to a nearby surface. Activated carbon filter usually is used to absorb smoke, odors and gases. However, those filters has their own limitation, for example, regular filters can only trap those particles passing through them, but in reality only less than 10% air in the indoor area will reach the filter. In order to keep our indoor area clean and fresh, the air need to be cleaned 100%.
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