USING THE ZOLL VENTILATOR4-12 www.zoll.com 906-0731-01-05 Rev. CFIO2 (Fraction of Inspired Oxygen) -- Oxygen DeliveryManagementPressing the FIO2 parameter button highlights the current FIO2 value and enables you to adjustit. There are no adjustable secondary parameters. The default values at start up is 21% whetheroxygen is present or not. If an FIO2 value greater than 21% is saved and used for Power Upsettings, the unit start ups with that saved FIO2 value if high-pressure oxygen is present. Ifhigh-pressure oxygen is not present, the unit starts up with FIO2 = 21% and O2 SUPPLYPRESSURE LOW alarm is not activated. The secondary display in the parameter window is O2Use 1. This is the flow (liters/min) of high pressure oxygen used by the unit to support thepatient at the current settings. O2 Reservoir mode is indicated on the display with a plus “+”sign next to the FIO 2 value when this mode is active. (The “O 2 Use” value does not includeoxygen use in the O2 Reservoir.)The following table lists the options and ranges for the FIO2 parameter:1. O 2 Use = ((FIO 2 -0.21)/0.79)*Minute Volume where FIO 2 is represented as a fraction and minutevolume is the actual minute volume (controlled and spontaneous breaths * tidal volume).Parameter WindowOptions /RangeAvailability/Notes ModelsPrimary Value FiO2%21 to 100 All breaths are delivered fromthe compressor at 21%All breaths are delivered fromthe High Pressure O2 Source at100%AllSecondary Values Not Applicable AllAlarm Limits Not Applicable AllMeasured Values O2 Use (L/min) 0 to 99.9 Shows when High PressureOxygen Supply is present.AllFiO2 Context MenuO2 Reservoir Default : off Off / On “+” icon indicates when “on” forlow flow oxygen.All