<unk>  (also called<unk>  respiration) is a means of assisting or stimulating respiration, a metabolic process referring to the overall exchange of gases in the body by pulmonary ventilation, external respiration, and internal respiration. It may take the form of manually providing air for a person who is not breathing or is not making sufficient respiratory effort, or it may be mechanical ventilation involving the use of a mechanical ventilator to move air in and out of the lungs when an individual is unable to breathe on their own, for example during surgery with general anesthesia or when an individual is in a coma or trauma.
Artificial ventilation
Negative pressure ventilator
Mechanical ventilation
Respiratory gas humidification
Non-invasive ventilation
Pressure support ventilation
Positive airway pressure
Elastomeric respirator