AED education, in plain language

No medical jargon. Just the facts you need to make a confident decision and keep your program ready.

What is an AED?

An Automated External Defibrillator (AED) is a portable device that analyzes a person's heart rhythm during sudden cardiac arrest and, if needed, delivers a shock to restore a normal beat. Modern AEDs talk you through every step — anyone can use one.

  • • Voice and visual prompts guide the rescuer
  • • Won't shock unless a shockable rhythm is detected
  • • Designed for the public — no medical training required

How AEDs save lives

Every minute without defibrillation drops survival odds by ~10%. An AED used within 3–5 minutes can lift survival from less than 10% to as high as 70%.

70%
Survival within 3 min
10%
Survival drop per min
350K+
OHCAs in the US per year
<3 min
AHA-recommended response

Placement guide

Place AEDs so they can be retrieved and returned in ≤3 minutes. Mark with bright signage and unlock cabinets.

Maintenance basics

Inspect monthly: status indicator, pad expiration, battery date, and accessories. Replace pads every 2–5 years.

Chain of Survival

The AHA's chain of survival is what turns a cardiac arrest into a saved life. AEDs power link #3 — and the earlier the better.

  1. Step 1

    Recognize & call 911

  2. Step 2

    Early CPR

  3. Step 3

    Rapid defibrillation

  4. Step 4

    Advanced resuscitation

  5. Step 5

    Post-cardiac arrest care