Commercial Kitchen Fresh Air Ventilation System Supply, fabricate, install, test, and commission a complete commercial kitchen fresh air ventilation system including 300mm x 300mm GI ducting, fresh air filtration unit, fresh air blower, volume control dampers, supports, hangers, grilles, flexible connections, and all necessary fittings and accessories. The system shall be designed to provide adequate fresh air supply to the kitchen area, ensuring proper ventilation, air quality, and balanced airflow. The scope includes complete installation, testing, commissioning, and handover of a fully operational system.