Based on medical standards and clinical practice, setting the ventilator at a lower level can negatively affect a patient's vital signs and respiratory function. Ventilators are devices used to assist or replace a patient's voluntary respiration, usually by adjusting parameters to suit the patient's needs. A ventilator set too low can result in inadequate oxygen supply and decreased oxygen saturation for the patient, and can even lead to respiratory failure and heart problems.
To ensure patient safety and stability, healthcare professionals are often advised to adjust ventilator parameters based on patient-specific conditions and monitoring results. If it is necessary to lower the ventilator parameters, this should be done under the supervision of a physician, and the patient's vital signs and breathing should be monitored promptly to ensure that he or she is in an appropriate therapeutic state.