An Automated External Defibrillator (AED) or defibrillator is a life saving device that can help save the life of someone experiencing a sudden cardiac arrest. They are easy to use, portable, with clear step-by-step instructions so anyone can use them, from a bystander to a trained professional.

A defibrillator is a sophisticated, yet easy-to-use, medical device that can analyze the heart's rhythm and, if necessary, deliver an electrical shock, or defibrillation, to help the heart re-establish an effective rhythm.

The 'British Heart Foundation' and 'St Johns Ambulance' both have some helpful pages on how to use a defibrillator (see links below).

https://www.bhf.org.uk/how-you-can-help/how-to-save-a-life/defibrillators
https://www.sja.org.uk/get-advice/first-aid-advice/how-to/how-to-use-a-defibrillator/