A high pressure oxygen tube is provided to receive all people that need oxygen such as athletes or examinees as well as patients in a large space secured in the tube rapidly and comfortably, and to enable a user to access to the tube easily by a wide entrance. A high pressure oxygen tube includes: a tube(10) having an oxygen inlet(12) connected to an oxygen generator and an entrance(11) formed on a circumference part, and a chamber formed therein; a first space(20) formed under the tube, and supporting a lower part of the tube by being spread in a panel shape by a compressed air injected into an inner space part; and a second space(30) formed on both sides in the tube, and maintaining a state that is spread in a straight tube shape by the compressed air injected into the inner space part. The first and second spaces have expanding members and connection members made of a flexible material.
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