Profile: Teledyne Advanced Pollution Instrumentation, Inc. is a designer and manufacturer of analytical instrumentation for precision gas analysis. We are an ISO 9001:2000 certified company. We provide continuous emissions monitoring, semi-conductor fabrication, water purification and treatment, clean room monitoring, gas purity & air separation. We offer air quality monitoring instrumentation, which complies with the environmental protection administration requirements for the measurement of criteria gases consisting of carbon dioxide, sulfur dioxide, nitrogen dioxide and ozone.