Local Mechanical Exhaust Rates
Activity
|
Sub Type (if applicable)
|
Air changes/hour
|
Auditoria
|
|
10
|
Bathroom
|
|
10
|
Bedroom
|
Bedroom only
|
4
|
Bedroom with ensuite (bedroom unit)
|
6
|
Car park
|
|
6
|
Cell (police / prison)
|
|
10
|
Changing facility with showers / communal shower room
|
|
20
|
Check in areas
|
|
6
|
Circulation area
|
|
5
|
Computer room
|
Computer lab / suite
|
10
|
Data centre / server room
|
6
|
Display and public areas in library / museum / gallery
|
|
6
|
Display window
|
|
As adjacent zone activity
|
Dry sports hall
|
|
6
|
Eating/drinking area
|
Hotel bar
|
10
|
Canteen
|
12
|
Cafe, coffee bar, restaurant, public bar
|
15
|
Fitness suite / gym
|
|
12
|
Exercise / dance studio
|
|
20
|
Hall / lecture theatre / assembly area
|
Exc. libraries
|
10
|
Libraries
|
4
|
Ice rink
|
|
6
|
Industrial process area
|
Factory (general)
|
10
|
Electroplating
|
12
|
Welding shops (general extract), foundries, dye works
|
30
|
Glass houses
|
60
|
Kitchen
|
Commercial food prep
|
40
|
Residents kitchen
|
15
|
Laboratory
|
|
15
|
Laundry
|
|
15
|
Lounges
|
|
10
|
Office / consulting area
|
|
10
|
Performance area (stage)
|
|
6
|
Plant room
|
Light plant room
|
30
|
Heavy plant room
|
6
|
Reception
|
|
10
|
Residents common rooms
|
|
6
|
Sales area (all types)
|
|
10
|
Store room
|
|
6
|
Swimming pool
|
|
10
|
Teaching areas (classrooms)
|
|
6
|
Toilet / locker room
|
|
10
|
Waiting room
|
|
10
|
Warehouse
|
|
6
|
Workshop (small scale)
|
Darkrooms
|
8
|
Workshop garages
|
10
|
Recording studio
|
12
|
Other (not one of the above)
|
6
|
Domestic situations
Activity
|
Sub Type
|
Air changes/hour
|
Domestic bathroom
|
|
10
|
Domestic bedroom
|
|
4
|
Domestic circulation
|
|
6
|
Domestic dining room
|
|
6
|
Domestic kitchen
|
|
15
|
Domestic lounge
|
|
6
|
Domestic toilet
|
|
10
|
Room or Building
|
Air Changes per Hour
|
Assembly Rooms
|
10
|
Bakeries
|
30
|
Banks/Building Societies
|
6
|
Bathroom (non domestic) without Shower
|
8
|
Bathroom (non domestic) with Shower
|
20
|
Bathroom (domestic)
|
10
|
Bedrooms
|
4
|
Boiler Rooms
|
30
|
Cafés and Coffee Bars
|
15
|
Canteens
|
12
|
Cellars
|
10
|
Cinemas and Theatres
|
10
|
Club / Games Rooms
|
10
|
Compressor Rooms
|
20
|
Conference Rooms
|
10
|
Dairies
|
10
|
Night Club / Disco
|
20
|
Dye Works
|
30
|
Electroplating Shops
|
12
|
Engine Rooms
|
30
|
Entrance Halls, Corridors
|
5
|
Factories and Workshops
|
10
|
Fitness Centres
|
12
|
Foundries
|
30
|
Garages (workshop)
|
10
|
Glass houses
|
60
|
Hairdressing Salons
|
15
|
Hotel Bars
|
10
|
Kitchens – Non Domestic
|
40
|
Kitchens – Domestic
|
15
|
Laboratories
|
15
|
Launderettes / Laundries
|
15
|
Lecture Theatres
|
10
|
Libraries
|
4
|
Living Rooms
|
6
|
Meeting Room
|
10
|
Offices
|
6
|
Photo and X-ray Darkrooms
|
8
|
Public House Bars
|
15
|
Recording Studios
|
12
|
Restaurants
|
15
|
Schoolrooms
|
10 l/s/Person
|
Shops and Supermarkets
|
10
|
Sports Hall / Squash Courts / Gymnasiums
|
6
|
Stores and Warehouses
|
6
|
Swimming Pools
|
10
|
Tea Making
|
10
|
Toilets
|
10
|
Utility Rooms
|
20
|
Welding Shops (General Extract)
|
30
|
Mike Gordon
Comments