The parking ventilation system is highly important for removing toxic gases and smoke emitted from vehicle exhausts. Some of these pollutants include carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO2), and heavy metal compounds, which are extremely harmful to human health. Therefore, the primary mission of the parking ventilation system is to evacuate or reduce the concentration of these pollutants.

The presence of smoke control systems is essential in which buildings?

• In any parking lot that lacks natural ventilation conditions through proper openings and is considered an enclosed parking lot according to regulations, the presence of smoke management systems in fire conditions is essential.
• Spaces with a floor level more than 9 meters below the occupant discharge level must, regardless of their use, have smoke evacuation systems in fire conditions.
• Some specific uses such as hospitals and medical or care centers, where there is not enough time to evacuate all occupants, must be equipped with smoke control systems according to Iranian national regulations.
• Atriums or void spaces in public buildings such as shopping centers, office buildings, or educational facilities are among spaces that, due to the forces governing smoke movement, must have independent smoke evacuation systems.