Calgon Carbon makes activated carbons and purification systems and offers purification, separation, and concentration services to industrial process and environmental markets. It operates through three segments: Activated Carbon and Service, Equipment, and Consumer. Its Activated Carbon and Service unit makes granular and powdered activated carbon to remove organic compounds from water, air, and gases. The Equipment unit designs and installs carbon adsorption systems for use at treatment sites, including equipment to control odors at waste treatment plants. Its Consumer unit makes Zorflex carbon cloth, sold to medical, military, and specialty markets.