The EVAC+CHAIR is the original emergency evacuation chair. There are plenty of copycat competitors, but as usual, the original is still the best.Here's why:Our evacuation chair is simple. It works every time. It is intuitive so anyone can use it, even without training or instruction. There are no complicated add-ons to break. No gimmicky features to snag or fail. It simply works, effectively, easily, and does what it was designed to do: save lives.