How activated carbon is made?
Most active carbon, as used for gas or vapor trapping, is made from coconut shell. The shells are heated to over 2,000°C under high pressure, which causes fissures on the surface of the carbon, creating a high quality, small pore activated carbon. The fissure system is extensive, creating a very large surface area in a small package, and it is in these fissures that other gases and particles are trapped. A single activated carbon filter has a flattened surface area of a football field.
