7 questions to ask when buying a heart defibrilator


Prior to investing in a heart defibrilator, there are a variety of factors that need considering. Each defibrillator suits different environments and is able to withstand different environmental elements. Heart defibrilator s are a significant investment for small and large companies alike and finding the right device for you is imperative.


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What is an automated external defibrillator (AED)?

An Automated External Defibrillator (AED) is a portable life saving device that can give a casualty’s heart An electric shock, when it has stopped beating normally in a sudden cardiac arrest.

A defibrillator works by checking the casualty’s heart rhythm once the defibrillator pads are placed on their chest and giving them a shock if needed.

Defibrillators can be used on adults or children over one year old.

By using a defibrillator before an ambulance arrived, you can dramatically increase someone’s chance of survival.

How much is heart Defibrilator?

The cost of a defibrillator can vary depending on the model and its features. Typically, Defibrillators can cost between £800 and £2,500.

For more information about defibrillator maintenance, please read our Guide for defibrillator.

Find defibrillators suitable for:


Transport and transportation hubs

Shopping centres and public


Harsh environments (sea vessels, industrial sites)


Does a defibrillator stop the heart?

A defibrillator does not stop the heart. A defibrillator is used to start the heart when a cardiac arrest occurs. The shock to the heart can restore normal heart rhythm and help the patient survive, even if no professional doctor is around. After the ambulance arrives, they can take further care of the patient. But the defibrillator won’t stop.

What are the dangers of defibrillator shocks?

While defibrillator devices are designed to save lives, there are a few minor dangers you need to be aware of. This is natural when dealing with electrical equipment that produces a strong impact. One of the most obvious dangers is the use of AED in explosive environments. Any spark can start a fire here, which is a dangerous possibility, especially if you are surrounded by other flammable objects.

Another danger with AED defibrillators is water. Water is a strong conductor of electricity. You should always allow the patient to dry before administering an AED shock in case the harm outweighs the good.

Another risk is that the patient has a pacemaker or implanted defibrillator device. If you know this is the case, place the shock absorbers 1 inch from the implant. You may not have this information. In this case, always place the electrode in the position indicated by the defibrillator.

How many volts is the defibrillator?

The voltage of the Defibrillator devices varied from machine to machine. Range from about 200 to 1000 volts. It is important to remember that regardless of voltage, if someone has cardiac arrest, then the best thing you can do is use the nearest defibrillator, regardless of voltage.

Should a defibrillator be kept in a locked cabinet?

Different ambulance trusts recommend different things when it comes to locking the cabinet. Please check with the ambulance trust in your local area for their advice.

Some defibrillator cabinets are alarmed rather than locked, letting people know that the defibrillator is being accessed.

St John Ambulance believes defibrillators should made as accessible as possible to ensure they can be accessed quickly in an emergency.

How often should the defibrillator be checked?

The power and wear of the defibrillator should be checked frequently. For battery power, most defibrillators have a built-in check system that alerts the user if the battery needs to be replaced. In addition, you should have your defib checked manually every few weeks. Check for damage/theft and if any new items are needed. Batteries and pads need to be replaced after a certain period of time, so it’s worth keeping them in stock when they need to be replaced.

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