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AED Buying Guide

How to choose the right AED for your workplace, club or community — semi-automatic vs fully-automatic, paediatric capability, indoor or outdoor placement, running costs, and registration.

Document Version 1.0 · August 2026 · hayesfirstaid.com/defibrillators/buying-guide

AT A GLANCE

  • Semi- vs fully-automatic: no legal difference — a choice of how much control the rescuer keeps over the shock.
  • Paediatric: needed if under-8s or under-25kg users may be treated — schools, crèches, underage sports.
  • Indoor or outdoor: outdoor placement usually means a cabinet, and a heated one needs a mains electrician.
  • Running costs: pads roughly every 2 years, battery roughly every 4–5 years, depending on brand.
  • VAT: AEDs are zero-rated (0%) in Ireland.
  • Registration: not required by law, but strongly recommended — free, and you do it directly.

Where to start

Every AED sold in Ireland has to meet the same EU medical device standard, so the real choice isn't "good vs bad" — it's which features fit your setting. Before comparing models, it helps to answer a few questions:

  • Who is likely to use it — trained first-aiders, or anyone nearby in an emergency?
  • Could a child ever need treatment?
  • Will it live indoors, or does it need to survive outdoors?
  • Do you need usage data and reporting (e.g. for a workplace safety file), or is a simple device enough?

For the legal side of AEDs at work, see our AED Compliance guide. For the case for having one at all, see Why Every Workplace Needs an AED.

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Semi-automatic or fully-automatic

✔ NEITHER IS "MORE COMPLIANT" There's no Irish or EU rule favouring one type. A semi-automatic AED prompts the rescuer to press a button to deliver the shock; a fully-automatic AED delivers it automatically once it detects a shockable rhythm. Both are equally lawful and equally effective — this is a preference, not a compliance decision.

Most workplace and community buyers choose semi-automatic, since it keeps a person in the loop for the final step and can feel less daunting to a first-time user. Fully-automatic suits settings that want to remove that decision entirely from an untrained bystander.

Some models also offer CPR feedback — a sensor in the pads that gives real-time guidance on compression depth during use — worth asking about if hands-on coaching during an emergency matters to you.

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Do you need paediatric capability

🏭 MANUFACTURER GUIDANCE Adult pads should not be used on children under roughly 8 years old or 25kg without switching to paediatric mode — either dedicated paediatric pads or a paediatric key, depending on the model. This threshold is set by the pad manufacturer, not by Irish law.

If your setting could ever involve a child in that age or weight range — schools, crèches, GAA and sports clubs with underage teams, family-facing venues — check that your chosen model has a paediatric option, and budget for it as a separate item at purchase.

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Indoor or outdoor placement

An AED kept indoors can usually sit in a simple wall bracket or unheated cabinet. Outdoor placement — a GAA clubhouse wall, a rural community hall, a business exterior — normally means a dedicated outdoor cabinet, and access-controlled cabinets are worth considering anywhere the device needs to be reachable outside opening hours.

⚡ Heated outdoor cabinets require a 240V mains supply — installation by a registered electrician, not included. Solar-powered cabinets don't have this requirement. See our range of AED Cabinets for the options.

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Running costs over the AED's life

The purchase price isn't the whole cost — pads and batteries expire on a fixed clock and need replacing whether the device is used or not. As a rough guide, pads typically need replacing around every 2 years and batteries around every 4 to 5 years, though this varies by brand and model.

For the full battery and pad lifespan table by brand, see our AED Maintenance Guide. Register your AED with AED Guardian — our free tracking service — and we'll remind you at 90, 60 and 30 days before anything expires, so replacement costs never come as a surprise.

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Registration, VAT and compliance

✔ WHY REGISTER ANYWAY Around 9,000 AEDs are estimated to be in place across Ireland, with only around 4,500 on the National AED Network. An unregistered AED is invisible to 112/999 dispatchers, who can only direct a caller to a device they know about. You register directly — it's free and takes minutes. Hayes First Aid does not register an AED on your behalf.

VAT: AEDs are zero-rated for VAT (0%) in Ireland, along with pads, batteries and AED-specific accessories.

For the fuller legal and compliance picture — the underlying law, HPRA and workplace duties — see our AED Compliance guide.

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Frequently asked questions

Semi-automatic or fully-automatic AED — which do I need?

There's no legal requirement either way. Semi-automatic devices prompt the rescuer to press a shock button; fully-automatic devices deliver the shock themselves once a shockable rhythm is detected. Most workplace and community buyers choose semi-automatic, since it keeps a person in control of the final step, but both are equally valid choices under Irish and EU rules.

Does my AED need paediatric pads?

If children under roughly 8 years or 25kg may need to be treated — schools, crèches, sports clubs with underage teams — you need paediatric pads or a paediatric key for that model. Adult pads should not be used below that threshold without switching to paediatric mode.

How much does an AED cost to run over its lifetime?

Beyond the purchase price, budget for pad replacement roughly every 2 years and battery replacement roughly every 4 to 5 years, depending on brand and model. See our AED Maintenance Guide for a full battery and pad lifespan table by brand.

Do I have to register my AED?

There's no legal requirement to register an AED in Ireland, but it's strongly recommended — an unregistered AED is invisible to 112/999 dispatchers, who can only direct callers to devices on the National Ambulance Service's National AED Network. You register directly, free, in minutes.

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Contact us

For help choosing the right AED for your setting:

Phone (Limerick)
Mon–Fri 09:00–17:00 (GMT)
Phone (Dublin)
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Address
MacroMed Healthcare Limited
Castle Demesne
Newcastle West
Co. Limerick, V42 N220
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© 2026 MacroMed Healthcare Limited, t/a Hayes First Aid · Company No. 510559 · VAT IE9824728C
This page is general guidance, not legal advice. Confirm your specific requirements with our team before ordering.

A family-run Irish business supplying defibrillators, first aid and rescue equipment, and the training and servicing that go with them. Founded 2012.

MacroMed Healthcare Limited
trading as Hayes First Aid
Castle Demesne, Newcastle West, Co. Limerick, V42 N220
069 66006 · Mon–Fri 09:00–17:00 (GMT)
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© 2026 MacroMed Healthcare Limited, t/a Hayes First Aid. Registered in Ireland, CRN 510559. VAT IE9824728C. WEEE retailer take-back Reg. No. 20208. In an emergency call 112/999. Irish workplace first aid: S.I. No. 299 of 2007. Card and account payments accepted.