Celgard Inc., of Charlotte, N.C., has introduced its membrane contactor product line. The Liqui-Cel Membrane Contactors are currently used across the globe for O2, CO2, and N2 removal as well as carbonation and nitrogenation. They can be found in the semiconductor, power, pharmaceutical, food and beverage, and many other general industries. Liqui-Cel Membrane Contactors offer a compact efficient solution for gas transfer to and from liquids.