A vented full face mask is a type of respiratory mask designed to cover both the nose and mouth, often used in medical or healthcare settings to provide respiratory support. It is most commonly used in non-invasive ventilation (NIV) treatments for patients who need assistance with breathing, such as those with conditions like chronic obstructive pulmonary disease (COPD), obstructive sleep apnea (OSA), acute respiratory distress syndrome (ARDS), or post-surgical recovery.