Service Description Ventilation is one of the most important architectural requirements that must be considered in architectural design within buildings and facilities, especially for spaces with humidity due to the lack of natural air or limited natural air intake, or internal spaces that do not receive natural ventilation, or tall and compact buildings. 1. Normal ventilation work This is a process of removing unwanted air and sometimes pushing fresh air in its place, depending on the requirements and nature of use. 2. Emergency ventilation work - The most famous cases are fire situations (God forbid), where smoke is extracted using special exhaust fans (capable of withstanding high temperatures) connected to the fire system. Also, in cases of stairwell pressure (escape stairs), this process takes place in high-rise buildings, and the supplied air increases the pressure in the stairwell to prevent any smoke from entering during a fire, allowing people to exit the building. All of this is designed according to international specifications and codes, most notably the Fire Protection Code (NFPA).
