 Activated carbon, a natural, non-metallic material, is the base of carbonic or sweetening filters. Activated carbon can adsorb up to 60% of its own weight in gas. Thus carbonic filters are very effective in removing odors and gases. These filters are able to absorb many gases, odors, and contaminants, including potentially hazardous and possibly carcinogenic chemicals in the air.
EPA approved the usage of carbon filters.
Carbon air filters are largely used in home or commercial heating ventilation and air conditioning systems and remove small particulates such as allergens and other common irritants from the air. These filters are also used in the automobile industry to help to promote engine hygiene. Some domestic and industrial appliances house their own internal air filters to increase air quality or to remove odors. Clean air within individual machines also ensures longer life to the units.
As the rule, such type of filters is used in addition to other filters. The main disadvantage is that carbonic filters aren’t restored. Filter efficiency is determined by the size of the filter fibers, the density of the fibers in the filter and the velocity of the air that moves through the filter. Carbon air filters are available in a range of sizes to suit individual needs.
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