Where ventilation is provided by mechanical means, the minimum fresh air flow rate to be introduced per occupant is set out in the following table:
| DESIGNATION OF PREMISES | MINIMUM FLOW of fresh air per occupant (in cubic metres per hour) |
|---|---|
| Offices, rooms without physical work | 25 |
| Catering premises, sales premises, meeting rooms | 30 |
| Workshops and rooms with light physical work | 45 |
| Other workshops and premises | 60 |