Unfortunately, accidents and emergencies happen every day. Today, emergency services only rely on auditory information from the caller; to dispatch the right tools and instruct the caller. Imagine if the dispatcher gets extra visual information and sensors to their disposal. Or that the caller receives immersive, self-evident instructions right in front of their eyes. So they can provide aid without taking their hands or their attention away from the emergency. That is all possible with EVU. EVU, Emergency Vision Unit is a mixed reality helmet to professionally deal with critical emergency calls while the first responders are on their way. EVU provides visualisation of instructions in real-time to the caller during an emergency and gives the dispatcher real-time visual information to assist.