Whenever passengers choose to fly and are picking their travel itineraries, the attractiveness of an airline offer relies on four main pillars: price, travel time, loyalty benefits and, of course, comfort. While the seating arrangement on board, including the type of seats a carrier has chosen to fit its aircraft with matters a lot, cabin pressurization is essential to ensure passenger comfort and safety. After all, travelers would not be very comfortable if due to the lack of oxygen they would pass out mid-flight.