Pilot Breathing Assessment Program Prototype JPL Mask with U.S. Air Force Configuration 

NASA research pilot Wayne Ringelberg wears a U.S. Air Force configuration of the NASA Jet Propulsion Laboratory in California prototype mask, which uses laser sensors to determine levels of carbon dioxide and water exhaled inside the mask. This prototype was tested in conjunction with the current VigilOX system, which measures the pilot's oxygen concentration, breathing pressures and flow rates. This and the U.S. Navy configuration was used in the Pilot Breathing Assessment program at NASA's Armstrong Flight Research Center in California.