The purpose of this study is to validate the efficacy of using a small portable oxygen source to mitigate altitude-induced hypoxic events. To do so, the invesitgators propose the following aims:~Determine the ability of a portable oxygen storage device to reverse hypobaric hypoxemia in volunteers at altitude.~Determine the duration of time that a single portable oxygen container can maintain normoxia in normal volunteers at altitude.~Determine the optimum dose and timing of oxygen use to reverse hypobaric hypoxemia.
This is a study to validate the efficacy of using a small portable oxygen source to mitigate altitude-induced hypoxia.