What Is the Automated External Defibrillator that Saved Bills Player Damar Hamlin?

Timely use of an automated external defibrillator (AED) appears to have prevented an NFL player's death on live national television.

What Is the Automated External Defibrillator that Saved Bills Player Damar Hamlin?

Timely use of an automated external defibrillator (AED) appears to have prevented an NFL player's death on live national television.