Roscosmos cosmonaut Oleg Platonov is pictured with an air sampling device

GMT240_ForMoscow_RG 4250 27.08.202

iss073e0547546 (Aug. 27, 2025) --- Roscosmos cosmonaut and Expedition 73 Flight Engineer Oleg Platonov is pictured with an air sampling device to detect and analyze trace contaminants such as carbon dioxide and ammonia to ensure a safe breathable environment aboard the International Space Station.