Question: what is cabin pressure

Hephzi Tagoe answered on 17 Mar 2015:

So basically the higher up we go the less the pressure in the atmosphere which means the less oxygen we take in when we breath.
To make passengers comfortable on flights at high altitudes so we are not gasping for breath, when planes are made the cabin is designed to create the atmosphere as it will be at a lower altitude . As the plane climbs to a high altitude, the cabin is pressurized so we can still breathevin normal levels of oxygen, and as it descends for landing, it is gradually de-pressurized so this will no longer be needed.