Large-scale engineering projects often involve long construction periods, extensive work areas, and complex spatial structures. Typical examples include tunnel construction, mining, underground projects, large industrial buildings, and infrastructure development. As construction depth and working ar

Industrial production processes often generate smoke, dust, heat, odors, and various types of process exhaust gases. If these pollutants accumulate inside a workshop for long periods, they can negatively affect indoor air quality, equipment operation, and the working environment. Therefore, establis

When a fire occurs, smoke can spread faster than flames and may cause poor visibility, high temperatures, and the accumulation of toxic gases. These conditions can seriously affect evacuation and firefighting operations. Therefore, a fire safety smoke exhaust system is an important part of modern bu

In large commercial buildings, office buildings, industrial facilities, underground spaces, and mixed-use complexes, fire compartments are an important part of the building fire safety system. During a fire, smoke can spread faster than flames. If the ventilation system is not properly designed, smo

High-rise buildings feature multiple floors, complex layouts, and high occupant density. Natural ventilation can be affected by building height, wind pressure, weather conditions, and interior structures. When odors, humidity, or polluted air accumulate in restrooms, underground spaces, equipment ro

Office buildings have high occupant density and continuously operating equipment. In enclosed air-conditioned environments, problems such as elevated carbon dioxide levels, unpleasant odors, dust, and abnormal humidity can easily occur. Good office building indoor air quality not only improves emplo