How does activated carbon work? 

Used on the world’s most hazardous airborne pollutants, activated carbon is one of the safest and most effective filtration methods in use today.

Activated carbon actually attracts pollutants and traps them in millions of tiny pores and fissures. The surface area in activated carbon is so extensive, that if you could spread out all of the microscopic openings found in only one teaspoon of activated carbon, it would cover an entire football field. This unique quality allows carbon remove very large amounts of chemicals, gases and odors.

Filters with only a small amount of carbon or carbon dust sprayed onto mesh won't have as many openings for pollutants to be trapped and can quickly be saturated. This results in most frequent filter changes and ineffective filtration.

AllerAir filter last on average 2 to 5 years, depending on the pollution level.