An artificial system designed to provide oxygen in an environment that lacks oxygen.
The equipment and special procedures used for life support.
Means of sustaining existence or continuation of something, usually in an artificial manner when it should have changed or terminated in its natural environment.
Maintenance of vital functions of a critically ill or comatose person or a person undergoing surgery.
A device designed to allow breathing when it would otherwise be hindered, as by a medical condition or the presence of poisonous vapors.