Teledyne Advanced Pollution Instrumentation, also known as TAPI, specializes in design and manufacturing of analytical instrumentation for precision gas analysis. It offers a complete line of air quality monitoring instrumentation that complies with the U.S. Environmental Protection Administration s regulations, as well as other international requirements. Founded in 1988, TAPI also manufactures products for use in applications related to continuous emissions monitoring, semiconductor fabrication, water purification and treatment, clean room monitoring, gas purity and air separation. Its products include calibration equipment, sensors, and ultraviolet fluorescence, chemiluminescence, infrared gas filter correlation and ultraviolet absorption analyzers. Headquartered in San Diego, Teledyne Advanced Pollution Instrumentation is an ISO 9001:2000-certified company.