The Phenom 300E can fly as high as 45,000 feet. From take off until 27,050 feet of altitude, the Phenom's cabin is pressurized to mimic the conditions at sea level. Above that, it's pressurized to the equivalent of 6,600 feet. Most commercial airliners are pressurized to 8,000 feet while new carbon composite jets like the Boeing 787 Dreamliner and the Airbus A350 are pressurized to around 6,000 feet.