We are dedicated to designing and implementing advanced tunnel ventilation systems that ensure safety and efficiency in underground environments. Our solutions feature a longitudinal ventilation system equipped with banana jet fans, which provide optimal airflow and temperature control throughout the tunnel. To enhance our environmental monitoring capabilities, we integrate opacity, CO, and NOx sensors for pollution monitoring, ensuring that air quality remains within safe limits as per PIARC guidelines. Additionally, our systems include wind velocity and speed sensors that allow for real-time adjustments to ventilation strategies based on changing conditions. Of course we integrate everything with SCADA.