The importance of ventilation ducts

Ventilation ducts play the role of ventilation and dehumidification in general basements, and play the role of ventilation, dehumidification and smoke exhaust in civil air defense basements.

Although the underground garage does not live with people, there are people entering and leaving, so it is also necessary to have an air quality suitable for human survival; the natural vents in the basement are few (generally only the entrances and exits), which is far from the required ventilation; The basement is often very humid (especially in the rainy season), and strong ventilation is needed to reduce the humidity.

Some garages also have a civil air defense function, which is considered to be used for temporary occupancy under special circumstances (generally during the war, the entrance and exit are closed, a large number of people avoid it, and consider that smoke and other fireworks will be poured into the basement during the war) , So consider installing smoke exhaust pipes.