Established 50 years ago, Erie Medical is a manufacturer of portable oxygen systems for homecare, emergency and long-term respiratory care. Based in Pleasant Prairie, Wis., the firm is a division of Ocenco Inc. It serves the hospital, clinic, nursing home and home care sectors. The company offers a wide variety of products under categories, including aluminum oxygen cylinders; dial, variable and fixed regulators; post valves; suction units; emergency oxygen and litermeters. In addition, it manufactures portable homecare units, carts, shoulder bags, stands and brackets.