1. Ambulatory Oxygen Therapy: Oxygen Inhalation at Home and Out-of-Doors*
ALVAN L. BARACH, M.D., F.C.C.P. 
Diseases of the Chest 
Volume 35, Issue 3, Pages (March 1959)
DOI: /chest
Copyright © 1959 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1 Light weight oxygen cylinder with double nasal plastic tubes.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1959 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Varieties of Oxy-Hale apparatus provide from 3 to 24 liters of pure oxygen, 21 to 168 liters of 32 per cent oxygen at sea level, or 30 to 240 liters of 100 per cent oxygen, saturated with water vapor at 37°C, at 30,000 feet altitude.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1959 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1959 The American College of Chest Physicians Terms and Conditions