Eli5: Airlines avoiding high altitude sickness

Question

How do airlines avoid high altitude sickness for their passengers?

In: Technology

Answer 1

Commercial airplanes are pressurized to keep the air inside the cabin at a level that does not cause people to suffer from high altitude sickness. Most airliners maintain a pressure inside that is roughly the same as being at about 8000’ above sea level. The newest generations of airliners keep the pressure about the same as being at more like 6000’.