Our history dates back to the 1930s as the medical service of National Cylinder Gas (NCG) in Chicago. NCG produced gases in cylinders and sold them to hospitals in the 1930s and early 1940s. These cylinders had to be transported from floor to floor where needed.

In order to eliminate the use of heavy cylinders and the risks associated with handling them, the innovative Chemetron® medical gas piping system was developed in 1947 to direct medical gases from an external source to the point of use. 

In June 1977, Chemetron acquired Gomco®, a recognized and leading manufacturer of portable aspirators and portable surgical, post-operative and home care drainage pumps. Our new position meant an alliance of some of the most established healthcare products and trade names, prompting us to adopt the name Allied Healthcare Products, Inc. in 1980.

Through subsequent acquisitions, we became a world-class provider of medical gas delivery systems, which play a critical role in patient care by regulating and monitoring the flow of medical gases.

Allied has sought to strengthen its position as a leader in medical gases, respiratory therapy and emergency medical products here and around the world, and to develop strong partnerships with leading research universities, both for the development of new products and for the improvement of existing products.