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What is a Defibrillator?

Have you ever passed a box marked ‘AED’ or ‘life-saving device’ and wondered: “What is a defibrillator?” They’re appearing in public places all over the UK, with the intention of making it easier to prevent deaths from cardiac arrests. As defibrillators become more commonplace, it’s useful to know how they work and how to go about using one.

There are various types of defibrillator. The AED, or automated external defibrillator, is the version you’re most likely to encounter, as it’s these that are appearing on streets and in busy venues such as sports centres and railway stations.

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