Introduction:
The biggest feature of tunnel air intakes is their high ventilation capacity. They can be used as air intakes for tunnel ventilation systems or for additional ventilation in summer. Both air flow rate and airflow direction can be easily adjusted. In cold seasons, the air intake baffle can be reliably closed. And the baffle has undergone insulation treatment to reduce temperature loss.
The tunnel air inlet is very suitable for lightweight wall buildings, as you can install the inlet on the inner wall by threading screws through the flange.


