Air bladder with attached hose and insertion tool for helmet installation. Simpson's Eject EMT Bladder System is a small air bladder connected to a flexible insertion tool. In the event of a crash, a trained EMT/First Responder can insert the device into a helmet and then inflate it using a Bulb or CO2 Inflator to gently lift the helmet off the wearer's head. The bladder applies a force to the top of the head helping to reduce the risk of secondary neck or spine injuries during helmet removal.