The AMI Crew Mask Test System is designed to automate the testing of airline crew oxygen masks and regulators. This computer-controlled test instrument eliminates manual adjustments of regulators and flow controls by automatically adjusting and monitoring various controls and sensors. Dilution and oxygen concentration adjustments can be made in the chamber at altitude. This automatic design saves time and money in testing of regulators and crew masks. This technology is currently in use with manufacturers, airlines and FAA repair centers. New capabilities and enhancements are routinely added to the design. All test data is saved electronically.