Smoke vent (- front face -)

An opening for removing smoke and heat from a fire. It is usually located on the exterior wall or roof of the building and is opened automatically or manually. There are two types of natural exhaust and mechanical exhaust, both of which are made of non-combustible materials. The smoke outlet is an opening that is automatically or manually opened on the wall or ceiling of the building, usually closed, and can be opened automatically or by hand when needed to eliminate the hot air and smoke generated by the fire. Its main functions are: reduce the heat temperature of the fire scene, prevent the spread of the fire; To avoid the death of the victim in the fire scene due to the lack of hydrogen in the smoke.