The Ambu junior is a lifelike and cost efficient training manikin that is designed to fulfil all requirements for training of BLS algorithms training. The Ambu Junior has the appearance of a 3 year old child with a body size of 86 cm. The lifelike anatomy of the manikin enables a realistic determination of the correct hand placement for performing chest compressions. The Ambu Junior allows an optimal training of chest compression in combination with realistic ventilation. The unique hygienic system prevents cross contamination. It allows a realistic ventilation resistance and expiration through the mouth. The closed shaped torso with its anatomical correct landmarks allows trainees to learn and train the use of Automatic External Defibrillators (AED) and the placements of pads.