Article Figures & Data
Figures
- Fig. 1.
Delivered flows were expressed as a percentage of required oxygen flow. Values obtained using 78 single-stage (A) and 70 dual-stage regulators (B) for oxygen flows from 2 to 12 L/min. Boxes illustrate the 25th and 75th percentiles, whiskers correspond to the 5th and 95th percentiles, and dots are outliers.
- Fig. 2.
Dispersion of the delivered flow differences for 78 single-stage oxygen cylinders between low pressure (A: ranged from 290 to 1,378 psi, no. = 26) and high pressure (B: ranged from 1,450 to 2,900 psi, no. = 52). Comparisons of low pressure and high pressure using the Friedman test are as follows: 2 L/min, P = .041; 4 L/min, P = .02; 6 L/min, P = .02; 9 L/min, P = .002, and 12 L/min, P = .004.
