The Cardiac Arrest Survival Act of 2025 aims to promote the use of automated external defibrillators (AEDs) in emergencies by providing legal protections against liability for those who use or manage these devices. The legislation seeks to encourage the widespread installation of AEDs, which can be crucial in saving lives during cardiac emergencies. Key provisions include immunity from civil liability for individuals who use an AED in good faith during a medical emergency, provided they are not the AED owner.