"Completed @ESA Airway Monitoring experiment with @astro_timpeake -- in US Airlock at 10.2 psi. @ISS_Research" -- NASA astronaut Tim Kopra ESA (European Space Agency) astronaut Timothy Peake participates in the Airway Monitoring experiment. With dust particles present in the International Space Station atmosphere, Airway Monitoring studies the occurrence and indicators of airway inflammation in crewmembers, using ultra-sensitive gas analyzers to analyze exhaled air. This helps to highlight any health impacts and to maintain crewmember well-being on future human spaceflight missions, especially longer-duration missions to the Moon and Mars for example, where crewmembers will have to be more self-sufficient in highlighting and avoiding such conditions.