Baltimore airport is one of the most significant projects to utilize BARRISOL as a means of acoustic control. Airport terminals are immense places with high ceilings and are subjected to significant acoustic disruption from the outside due to air traffic. In addition, crowd noise can often make airport terminals disorienting and confusing. To improve the acoustic comfort of the terminal for its occupants, white matt BARRISOL MICROPERF was chosen as the best solution to balance aesthetics and the functional need for sound control. The results obtained were much better than expected by airport administrators. The terminal is now more acoustically comfortable and the space benefits from the modern feel of the BARRISOL elements.