📘 The Complete Buyer's Guide
How to Buy an AED — The Complete 2026 Guide
Everything you need to make a confident AED purchase decision in 60 minutes. Written for non-technical buyers — no medical degree required.
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What Is an AED?
An automated external defibrillator (AED) is a portable medical device that analyzes a person’s heart rhythm and, if a shockable rhythm is detected, delivers an electrical shock to restart the heart. AEDs are designed for use by lay rescuers — the device handles rhythm analysis automatically, so the operator doesn’t need to interpret an ECG.
How AEDs Work (the 30-second version)
- Rescuer turns on the device — voice prompts begin
- Adhesive pads applied to patient’s bare chest
- Device analyzes heart rhythm (5–10 seconds)
- If shockable rhythm detected, device prompts: “Stand clear. Press shock button.” (or delivers shock automatically on fully-automatic models)
- After shock, device prompts CPR — and may guide compression depth + rate (ZOLL only)
- Cycle repeats every 2 minutes until EMS arrives
Features That Actually Matter
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Voice Prompts
Plain English, clear timing, no medical jargon. Critical for untrained users.
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Pediatric Capability
Swappable pads or pediatric key. Required for facilities with children under 8.
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IP Rating
IP55+ for outdoor/gym deployments. IP56 for poolside or humid environments.
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Self-Test
Daily / weekly / monthly automatic checks. Reduces inspection burden.
Total Cost of Ownership — What People Miss
The sticker price is roughly 70% of the real 5-year cost. The other 30% is consumables (pads + battery), inspection labor, and training. Typical 5-year math:
- Device: $1,300–$2,500 (one-time)
- Adult pads (2–5 yr life): $60–$150 each (typically 1–2 replacements over 5 yrs)
- Pediatric pads (where applicable): $90–$170
- Battery (4–5 yr life): $145–$185
- Cabinet + alarm: $150–$400 (one-time)
- Signage: $25–$80
- Annual CPR + AED training (designated staff): $40–$80 per person
For exact 5-year and 10-year math customized to your device + brand, run the AED Cost Calculator at our partner site.
Before You Buy — Checklist
- ✓ Confirm your state’s AED legal requirements
- ✓ Calculate unit count (AHA 3-min coverage)
- ✓ Decide: pediatric capability needed?
- ✓ Match device tier to user-training level (lay vs trained)
- ✓ Budget consumables + cabinet + signage
- ✓ Confirm authorized U.S. distributor (warranty intact)
- ✓ Plan registration with local EMS
- ✓ Schedule CPR + AED training for designated responders