With the continued development of highways, urban expressways, and mountainous road infrastructure, the number and length of highway tunnels are increasing. Tunnels are relatively enclosed transportation spaces. In the event of a vehicle fire, traffic accident, or other emergency, smoke and harmful

As urban rail transit networks continue to expand, air quality in metro tunnels has received increasing attention from operators and passengers. Unlike ordinary buildings, metro tunnels are relatively enclosed underground spaces. Train operation, braking friction, passenger activity, and outdoor air

Underground mining environments are characterized by enclosed spaces, limited natural airflow, and intensive operation of personnel and equipment. As mining activities continue to move deeper underground, air quality management has become a critical factor affecting production safety and operational

Tunnel-Specific Ventilation Duct SolutionsDuring tunnel construction and operation, there are high requirements for the air circulation environment. Since tunnel spaces are relatively enclosed, natural air exchange capacity is limited. Dust generated by construction equipment, vehicle exhaust emissi

Underground Powerhouse Ventilation Solution for Hydropower StationsAn underground powerhouse of a hydropower station is usually located inside a mountain or underground cavern. The space is relatively enclosed, equipment is concentrated, and personnel need to carry out long-term inspections, operati

One of the biggest challenges in tunnel construction is solving underground ventilation problems. As excavation depth and tunnel length continue to increase, dust, equipment exhaust gases, and heat generated during construction can gradually accumulate. Without an efficient and stable ventilation sy