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VENTURI VALVE MASK vs their color,fio2 and O2 flow rate

                VENTURI VALVE MASK

COLOR             FI02               O2 FlOW

Blue                          24%                     2 L / min

White                      28%                           4L/min

Orange                    31%                        6 L / min

Yellow                       35%                      8 L /min 

Red                            40%                    10 L / min 

Green                       60%                      15 L / min


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