We Take Hearing Healthcare Seriously. At Mid-States Laboratories, Inc., we’ve been running a family operated show since 1951. Even though we’ve been around a long time and are known as "the earmold suppliers of the astronauts," we’re still as committed as ever to bringing you the best quality hearing healthcare has to offer. We offer custom earmolds in various materials including our proprietary NASA-based Audtex and Apollo, as well as industry supply items. We believe in old fashioned customer service, no matter how fast-paced today's world has become. Give us a call for more information on how we can help you improve the hearing health of your clients.