In order to ensure proper oxygenation, the ventilator automatically switches to volume-controlled, mandatory ventilation in cases of apnea. This involves adjusting specific ventilation parameters, including VT, VTi, and VTe. These values are crucial for volume-controlled ventilation and must be precisely tailored to the patient. In situations such as ARDS, a specific VT value is recommended. Additionally, the value for maximum air flow, labeled as PIF, is determined by the ventilator and saved as 100%. In some cases, such as when a patient is not blocked, VTi can be around 1200 or higher, while it is around 500 when the patient is blocked. Other important parameters for ventilation include Ti, Te, and the I:E ratio. Monitoring these values is crucial for successful lung-protective ventilation. It is also important to note that alarms may be triggered if the Vte value falls below a certain threshold during exhalation, and this is particularly important when using AVAPS.