How It Works

Coolant is delivered to the surface of the nasal cavity at room temperature
Coolant rapidly evaporates due to air/oxygen gas flow
Surface of nasal cavity cools due to evaporation
Brain and body is cooled through direct conduction pre-ROSC
Upon return of circulation, the brain and body are cooled through indirect convection as the cooled circulating blood removes heat hematogenously

See How It Works