Powdered Activated Carbon (PAC) is similar to Granular Activated Carbon (GAC) as it is made from high quality coal, wood or coconut shell raw material. Powdered Activated Carbon (PAC) is a high performance absorbent engineered to remove harmful contaminants in the air, gas, and liquid phases. The potable water industry has long used PAC products to effectively remove taste and odor compounds, and provide clean water that is safe to drink.