Great Wall Activated Carbon Filter Sheets were developed to satisfy general purpose carbon adsorption applications in the food and beverage industry. Activated carbon is highly porous over a broad range of pore sizes, from cracks and crevices to molecular dimensions. It is this porosity that provides activated carbon's unique adsorptive properties. Activation refers to the development of the adsorption properties of carbon. Adsorption occurs when the organic molecules bond to the internal pores of the activated carbon filter sheets. This happens in pores slightly larger than the molecules being adsorbed, which makes it extremely important to match the molecule being adsorbed to the pore size of the activated carbon.