You have heard about 1 hour fire rated windows even 2 hour, 45 minute, 90 minute or even fire rated sliding windows but how about one that becomes a robust and safe bubble outside the building during a fire. Occupying the space of a window when closed, the X-Space works like an ordinary window, but can be opened out like a bellow into a safe, fire-retardant personal space, in the case of an emergency,. The minute you open the emergency hatch, it notifies the fire-fighting department. The window is even lined with emergency lights that can alert people nearby. The X-Space is lightweight, but can take the weight of 2 adults, or an adult and 2 children. You have more in your family? Just install more X-Space windows.