Fire safety and protection equipment is used for extinguishing fires, preventing flames from spreading, and helping people escape fires. Escape ladders attach to window sills to provide an emergency escape route from the upper level of a building. Fire-barrier products (also called firestops) help prevent the spread of fire and smoke. Fire blankets smother small fires or provide a protective wrap to shield someone from a fire. Fire extinguishers spray water or chemical agents for putting out small fires. Fire hoses and fire-hose nozzles connect to a pressurized supply of water or fire retardant for extinguishing large fires. Fire-probing tools includes axes, hammers, pikes, and other equipment for breaking down walls, poking through roofs, and locating smoldering fires. Fire-resistant treatments coat surfaces to help stop flames from spreading in the event of a fire.