[10] It is recommended that any passenger with a partial pressure of ... Estimated mean pulmonary artery pressure increased by 43% with acute exposure to altitude, probably secondary to hypoxia ...

Back home after his trip, he built this simple Temperature, Altitude and Pressure Display Device using a few off the shelf parts. Following a brief search, he zeroed in on the BMP 180 sensor ...

At this altitude the total air pressure is no longer ... spacecraft returns from microgravity to Earth's gravity. The partial-pressure suit and equipment will support a crewmember for a 24-hour ...