Mechanical Power-Guided Lung Protective Ventilation (VentCoach) in Acute Hypoxemic and/or Hypercapnic Respiratory Failure

Inclusion Criteria: * Patients with acute hypoxemic and/or hypercapnic respiratory failure. * Patients requiring intubation and mechanical ventilation for more than 24 hours. * VentCoach protocol is specific to volume controlled continuous mandatory ventilation (S-CMV). * Patient who are admitted to RMH 10-3/10-4 and MB 6BGF ICUs. * Age greater than or equal to 18 years. * Patient's legal representative should be able to provide informed consent to the study. Any participant speaking any language will be offered participation. Exclusion Criteria: * Intubation and mechanical ventilation for airway protection in the setting of procedures/surgeries, e.g. interventional radiology, surgery, or endoscopy. * Intubation and mechanical ventilation due to drug overdose with expected extubation of less than 24 hours. * Intubation and mechanical ventilation in the setting of cardiac arrest. * Intubation and mechanical ventilation for a primary neurological etiology, e.g. increased intracranial pressure, tumor mass effect, ischemic/hemorrhagic stroke, status epilepticus, etc. * Mechanical ventilation to be guided by esophageal balloon. * Subject deprived of freedom, minor, subject under a legal protective measure. * Change in end-of-life decision anticipated after enrollment (or estimated 6-month mortality rate of greater than 50%). Note: prone positioning is not a contraindication for participation.