Granular Activated Carbon (GAC) from coconut shell has predominantly pores in micro pore range. Almost 85-90% surface area of coconut shell activated carbon exists as micro-pores. These small pores structure renders it more effective for the adsorption of gas/vapor and for the removal of color and odor of compounds.The predominance of micro-pores in coconut shell carbon gives it tight structure and provides good mechanical strength and hardness and also high resistance to resist attrition or wearing away by friction.