Type of Room | Air Change Rate /Hour |
Shower Area | 15 To 20 |
Bathroom & Shower Rooms | 15 To 20 |
Bathroom | 6 To 10 |
Bedrooms | 2 To 4 |
Halls & Landings | 4 To 6 |
Kitchens | 10 To 20 |
Living & Other Domestic Rooms | 4 To 6 |
Toilets – Domestic | 6 To 10 |
Utility Rooms | 15 To 20 |
Cafés | 10 To 15 |
Canteens | 8 To 12 |
Cellars | 3 To 10 |
Changing Rooms with Showers | 15 To 20 |
Conference Rooms | 8 To 12 |
Garages | 6 To 10 |
Hairdressing Salons | 10 To 15 |
Hospital Wards | 6 To 8 |
Laundries & Launderettes | 10 To 15 |
Meeting Rooms | 6 To 12 |
Offices | 4 To 6 |
Restaurants & Bars | 10 To 15 |
School Rooms | 5 To 7 |
Shops | 8 To 10 |
Sports Facilities | 4 To 6 |
Store Rooms | 3 To 6 |
Workshops | 6 To 10 |
Assembly rooms | 4 To 8 |
Bakeries | 20 To 30 |
Banks/Building Societies | 4 To 8 |
Billiard Rooms * | 6 To 8 |
Boiler Rooms | 15 To 30 |
Canteens | 8 To 12 |
Changing Rooms Main area | 6 To 10 |
Changing Rooms Shower area | 15 To 20 |
Churches | 1 To 3 |
Cinemas and theatres * | 10 To 15 |
Club rooms | 0.12 |
Compressor rooms | 10 To 15 |
Dairies | 8 To 10 |
Dance halls | 0.12 |
Dental surgeries | 12 To 15 |
Dye works | 20 – 30 |
Electroplating shops | 10 To 12 |
Engine rooms | 15 To 30 |
Entrance halls & corridors | 3 To 5 |
Factories and workshops | 8 To 10 |
Foundries | 15 To 30 |
Glasshouses | 25 To 60 |
Gymnasiums | 0.6 |
Hospitals – Sterilizing | 15 To 25 |
Kitchens – Domestic | 15 To 20 |
Kitchens – Commercial | 0.3 |
Laboratories | 6 To 15 |
Lavatories | 6 To 15 |
Lecture theatres | 5 To 8 |
Libraries | 3 To 5 |
Mushroom houses | 6 To 10 |
Paint shops (not cellulose) | 10 To 20 |
Photo & X-ray darkrooms | 10 To 15 |
Public house bars | 0.12 |
Recording control rooms | 15 To 25 |
Recording studios | 10 To 12 |
Shops and supermarkets | 8 To 15 |
Squash courts | 0.04 |
Swimming baths | 10 To 15 |
Welding shops | 15 To 30 |
Basement Parking | 15-30 |
Residential Basement | 3–4 |
Residential Bathroom | 6-7 |
Residential Living Rooms | 6-8 |
Laundry | 8-9 |
Business Lunch Break Rooms | 7-8 |
Business Copy Rooms | 10-12 |
Computer Rooms | 10-14 |
Restaurant Dining Area | 8-10 |
Restaurant Food Staging Area | 10-12 |
Public Hallway | 6-8 |
Public Retail Store | 6-10 |
Public Foyer | 8-10 |
Smoking rooms | 15-20 |
Classrooms | 3-4 |
Warehousing | 3-10 |