An Emergency Breathing System (EBS) can make a life-saving difference in an emergency landing at sea, enabling aircrew to breathe underwater during the escape process. How long you can stay underwater with an EBS can be affected by several factors, including: Size of the cylinder Temperature of the water Depth of water reached during use Breathing rate required by the user Lung volume / capacity of the user. Our EBS course includes all the relevant skills in preparing and operating an EBS and ca