10 Analytical apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Diagnostic apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Examination apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Monitoring apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Medical analytical apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Physical analyzers for medical use in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Electronic analyzers for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Photometric analyzers for medical use in the field of hypoxia; Respiratory monitors for medical use in the field of hypoxia; Respiratory masks for medical purposes in the field of hypoxia; Respirators for medical purposes in the field of hypoxia; Breath gas analyzers for medical diagnostics in the field of hypoxia; Medical apparatus for training respiratory techniques in the field of hypoxia; Apparatus for the treatment of respiratory difficulties in the field of hypoxia; Apparatus for the alleviation of respiratory difficulties in the field of hypoxia; Medical apparatus for the treatment of respiratory conditions in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Tools for medical diagnostics in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Medical diagnostic apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Diagnostic apparatus for medical purposes in the field of hypoxia, namely, Electrocardiographic (ECG) recorders, electrogastrogram (EGG), spirometers, thermometers for medical purposes, pulse measuring devices, pulse oximeters, Medical devices for monitoring blood oxygen saturation, blood gas concentrations and vital signs; Body rehabilitation apparatus for medical purposes in the field of hypoxia; Exercise simulating apparatus for medical purposes in the field of hypoxia; Analytical apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Diagnostic apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Examination apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Monitoring apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Medical analytical apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Physical analyzers for medical use in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Electronic analyzers for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Photometric analyzers for medical use in the field of respiratory masks; Respiratory monitors for medical use in the field of respiratory masks; Respiratory masks for medical purposes in the field of respiratory masks; Respirators for medical purposes in the field of respiratory masks; Breath gas analyzers for medical diagnostics in the field of respiratory masks; Medical apparatus for training respiratory techniques in the field of respiratory masks; Apparatus for the treatment of respiratory difficulties in the field of respiratory masks; Apparatus for the alleviation of respiratory difficulties in the field of respiratory masks; Medical apparatus for the treatment of respiratory conditions in the field of respiratory masks; Tools for medical diagnostics in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Medical diagnostic apparatus for medical purposes in the field of respiratory masks, namely, breathing masks having analytical measuring features in the nature of measuring oxygen level, pulse, air volume, and temperature; Diagnostic apparatus for medical purposes in the field of respiratory masks; Body rehabilitation apparatus for medical purposes in the field of respiratory masks; Exercise simulating apparatus for medical purposes in the field of respiratory masks