Carbon air purifiers use activated carbon to trap unwanted airborne odors and gases. Activated carbon is a kind of charcoal that has been treated with oxygen gas. The treatment allows millions of small openings or pores between the carbon atoms to open up. Such pores are the ones that absorb odors and harmful gases from the air. Because carbon granules have large surfaces, filters that utilize carbon are very good at trapping gases that go through the usual particle filter. If you are using a carbon purifier, you should ensure that the filter is replaced regularly since trapped contaminants eventually fill up the carbon pores, rendering it ineffective.

Not all carbon air purifiers are the same, though. The activated carbon that activated carbon air purifier used on an air cleaner can be saturated and enhanced. It can also be blended to become a better absorbent. The more activated carbon there is to an air purifier, the better it will perform. More carbon will also last longer because of the large area of absorption that it has. The time it takes before an activated carbon filter is filled depends on the amount of pollutants that are on the air as well. If there are a lot of pollutants in the air and the amount of carbon in your filter is not sufficient, your filer will become useless in a matter of weeks.

A good carbon air filter can give you good absorption for eighteen to thirty six months. That is more than a year to three years without replacement. If you are going to choose from among the carbon air purifiers in the market, give special attention to the features of its filters. It could be the difference between having good quality air for a long time and throwing your money for an ineffective product.