Definitions for "Positive Pressure Ventilation"
Positive pressure ventilation is a technique in which large fans (usually gasoline powered, but sometimes electric) are used to force air through a structure for extremely fast ventilation. This creates a much higher pressure inside the structure than what exists outside thereby pushing the smoke and heat outside.
Provision of oxygen under pressure by a mechanical respirator.
A type of assisted breathing where air, frequently mixed with increased amounts of oxygen, is delivered under pressure by a mechanical respirator.