What Is The Lowest Air Pressure Ever Recorded?

What Is The Lowest Air Pressure Ever Recorded? The lowest non-tornadic atmospheric pressure ever measured was 870 hPa (0.858 atm; 25.69 inHg), set on 12 October 1979, during Typhoon Tip in the western Pacific Ocean. The measurement was based on an instrumental observation made from a reconnaissance aircraft. What is the lowest survivable air pressure?