The new TSI Mask Integrity Test Accessory (MITA) works in tandem with the CBRN Mask Protection Assessment Test System or PORTACOUNT® Respirator Fit Tester to quickly test for leaks in CBRN gas masks and/or commercial respirators. The MITA has been packaged for ease of use and ease of transport. The top of the carrying case holds the instrument while enclosed in the bottom is the accessory compartment. The head form provides a tight seal for most mask types and sizes. Masks attach to the headform using their head harness.