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Breathing apparatus for hypoxic pre-acclimatization and training

  • US 20060130839A1
  • Filed: 12/11/2003
  • Published: 06/22/2006
  • Est. Priority Date: 12/12/2002
  • Status: Abandoned Application
First Claim
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1. An apparatus for breathing an air mixture expired by a user, providing an air mixture which has lower oxygen concentration than the ambient air, said apparatus comprising:

  • an expiratory path, said expiratory path communicating with a reservoir, said reservoir being of adjustably variable volume;

    an inspiratory path communicating with said reservoir through a CO2 absorption chamber; and

    a directional valve, said directional valve allowing single direction flow of air through both said expiratory path and said inspiratory path; and

    means of communication of said expiratory path and said inspiratory path in sealed engagement with the respiratory system of a user.

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