Central ventilation means that one large ventilation unit ventilates several rooms.
The unit may ventilate the whole school, but more usually ventilation will be divided up, either for space reasons, fire reasons or according to type of room.
Ventilation will typically be divided up as follows:
- Classrooms
- Staffroom and offices
- Special subject rooms (gymnasium, kitchen, physics/chemistry labs, woodwork)
- Toilets
