High Altitude Simulation Testing
Do you need supplemental oxygen to fly on an airplane? A High Altitude Simulation Test (HAST) is given to determine if someone needs supplemental oxygen during commercial flights. The standard order is for a simulated altitude of 8,000 feet, which is the same atmospheric pressure as the cabin of a commercial airplane. This is not a barometric chamber but rather simulating various altitudes. Other altitudes can be simulated (E.g. Aspen, etc.) if ordered by your physician.