Airplane is stuffed with air pressure 30 psi. Outside of the airplane it is 1 or 2 psi at 35,000 feet above sea level. If there was a hatch, if opened would suck out of the airplane all loose items, including passengers not wearing seat belt.
closer to 12-15 psi
I’d like to be in the room when the engineers start talking about making an ill tempered passenger pod.