Zeolites are part of a family of minerals typically used as adsorbents or catalysts. Zeolites are alumina-silicate crystals that are very porous (they contain many small holes).
The large number of pores in zeolites means they are sometimes used to improve an air purifier’s ability to adsorbing gases such as VOCs, although this is not common.
Activated carbon filters are more common in air purifiers, as the large pore size of carbon filters means they are able to capture a wide range of VOCs. Zeolites, on the other hand, can be used in applications where more selective filtration is required. The wide range of VOCs and gases captured by activated carbon filters make them the primary and preferred material for air purifiers.
Learn more: How to choose the right combination of air filters »
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