METHOD FOR PROTECTING AIRCRAFT OCCUPANT AND BREATHING MASK

摘要

Method for protecting aircraft occupant comprising the steps of: - providing a user (7) with a breathing mask (4) for aircraft occupant, - providing a respiratory gas (62) including a mixture of breathable gas and dilution gas to the user (7), - sensing partial pressure or rate of oxygen or carbon dioxide in exhalation gas (64) generated by the user (7), - adjusting (60) the rate of oxygen in the respiratory gas (62).