The system facilitates changes in pressure and gas expansion as an altitude function. A number of safety features are built into the device, including the prevention of over-pressurization of the mask ...

88-year-old's clinical conditions are 'improving' after more than a month in hospital Pope Francis has suspended the use of an oxygen mask, the Vatican said on Wednesday, adding that the 88-year ...

Pope Francis is no longer using an oxygen mask to breathe at night and his doctors believe he will continue to improve, the Vatican has said. In the latest update on the pope’s health ...