On-Site Space
Confirm dimensions, openings, equipment and personnel.

Engineering project
A ventilation retrofit focused on classroom stuffiness, poor airflow and canteen odor spread. Water-cooled fresh air units supply fresh air, centrifugal fans assist exhaust, and backward-curved cabinets handle canteen fume. The fresh air units deliver cooled air and dilute indoor dust and stale air, the centrifugal fans accelerate air exchange, and the backward-curved cabinets discharge fume smoothly. Cost-effective, low-maintenance equipment suits the routine needs of a small-to-medium school.
Project overview
A ventilation retrofit focused on classroom stuffiness, poor airflow and canteen odor spread. Water-cooled fresh air units supply fresh air, centrifugal fans assist exhaust, and backward-curved cabinets handle canteen fume. The fresh air units deliver cooled air and dilute indoor dust and stale air, the centrifugal fans accelerate air exchange, and the backward-curved cabinets discharge fume smoothly. Cost-effective, low-maintenance equipment suits the routine needs of a small-to-medium school.
Fresh air, exhaust and fume-extraction equipment configured for classrooms, canteens and activity venues, based on on-site space and operating duty.The case illustrates the approach; specific equipment and parameters follow actual project documents.
Project gallery



Project challenge
Confirm dimensions, openings, equipment and personnel.
Locate fume, oil mist, odor or heat sources.
Plan the direction of fresh air in and pollution out.
Check duct resistance, noise, energy and maintenance.

Our solution
Zone the equipment by teaching area, canteen and venues, balancing airflow, operating noise and long-term maintenance.
Products used

Low-noise, vibration-isolated air supply for quiet areas like classrooms.

Delivers cooled fresh air to relieve stuffiness and stale air.

High pressure for long canteen exhaust duct runs.
Project approach