An AED or portable defibrillator is a computerized medical device which is used to recognize a heart rate of a patient and determine if it’s the case for an electric shock or not. If a shock is required in order to save the life of the patient then the AED device will apply one in order for the heart to reset and begin beating on its own again. Most such devices are designed to be used by people who have no medical training what so ever by providing clear written, illustrated and vocal instruction for every step of the procedure. Provided the instruction are followed as such there is no risk for a bigger shock than needed to be applied and there is also no risk that the user of the device will be socked accidentally. Such devices are becoming more and more popular especially in public places where chances of accidents are higher than usual. More and more school, churches, health clubs and other public places are being fitted with portable AED devices, as it has been proven that under certain circumstances they have a rate of over 90% of saving the life of someone in need of a defibrillation.

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