This Performance Work Statement outlines the requirements for enhanced leak testing of 34 specialized Type II tray filters for the U.S. Army Combat Capabilities Development Command Chemical Biological Center (DEVCOM CBC). These filters are critical for life-safety collective protection systems and have unique dimensions requiring a custom test fixture. The objective is to determine if these filters meet performance requirements by ensuring no leak paths exist in the filter weldment or carbon bed through a non-destructive test. The contractor will perform individual leak tests, with the possibility of up to 45 tests if needed for confirmation, using specific parameters for feed air flow rate, feed time, R134a mass feed rate, and purge air flow rate. Measurements for challenge and effluent air temperature, dewpoint, effluent concentration, and total R134a mass delivered must be made. The contractor will deliver test data and trend plots via email in an Excel file. The government will provide the Type II tray filters and evaluate performance according to a Quality Assurance Surveillance Plan. Security requirements are minimal as the contract is unclassified, but OPSEC measures for sensitive unclassified information may be required.