AS1668.2 Outside Air Requirements

Occupancy	Net floor area per person (Note 1) m2	Quantity	Unit	Comments
Amusement centres				See sports centres
Beverage services				See food services
Colleges				See education
Correction centres				See prisons
Dormitories				See hotels
Dry cleaners and laundries				More air may be required to laundries to satisfy exhaust air requirements
Commercial	10	10	L/s.person
Coin-operated dry cleaning	5	10	L/s.person
Coin-operated laundries	5	10	L/s.person
Pick-up areas	3.5	10	L/s.person
Storage areas	3.5	10	L/s.person
Education			L/s.person
Classrooms serving persons up to 16 years of age	2	12	L/s.person
Classrooms serving persons over 16 years of age	2	10	L/s.person
Laboratories	3.5	10	L/s.person	Special contaminant control systems may be required for processes or functions including laboratory animal occupancy
Libraries	5	10	L/s.person
Lounges	10	L/s.person
Music rooms	2	10	L/s.person
Training shops	3.5	10	L/s.person
Food and drink services
Bars	1	10	L/s.person
Cabarets	1.5	10	L/s.person
Cafeterias	1	10	L/s.person
Cocktail lounges	1	10	L/s.person
Dining rooms	1.5	10	L/s.person
Fast food outlets	1	10	L/s.person	For cooking, see Section 3
Food preparation, serving and storage	3.5	10	L/s.person
Funeral parlours		10	L/s.person
Chapels	0.6	10	L/s.person
Embalming rooms	5	10	L/s.person	Air shall not be recirculated into spaces
Reception rooms	1	10	L/s.person
General areas
Corridors		1	L/s.m2 floor
Dressing rooms	2	10	L/s.person
Foyers		1	L/s.m2 floor	General requirements (applies to all forms unless separately listed)
Lobbies		1	L/s.m2 floor
Pedestrian tunnels		1	L/s.m2 floor
Ramps		1	L/s.m2 floor
Rest rooms	1	10	L/s.person
Stairs		10	L/s.m2 floor	For stairs, passageways, etc. used as a means of egress, see AS/NZS 1668.1
Utility rooms		1	L/s.m2 floor
Health care				Applies to convalescent homes, dental surgeries, doctors’ clinics, hospitals, nursing homes, etc. Special requirements or codes and pressure relationships may determine minimum ventilation rates and filter efficiency. Procedures generating contaminants may require higher rates, laminar flow or dedicated systems Refer also to the requirements of Section 5
Amphitheatres	0.6	10	L/s.person
Autopsy rooms		5	L/s.m2 floor	Air shall not be recirculated Excludes teaching spaces, which may be subject to other regulatory requirements
Consultation rooms	3.5	10	L/s.person
Delivery rooms	5	20	L/s.person
Intensive care rooms	5	10	L/s.person
Operating rooms	5	20	L/s.person
Patient rooms	10	10	L/s.person
Physical therapy area	5	10	L/s.person
Procedure areas	10	10	L/s.person
Ready rooms	5	10	L/s.person
Recovery rooms	5	10	L/s.person	Ventilation strategy must consider exhalation of anaesthetic gases. Refer to Section 5
Waiting areas	1.5	10	L/s.person
Hotels, motels, resorts
Assembly rooms (large)	1	10	L/s.person
Bedrooms (single, double)	10	10	L/s.person
Conference rooms (small)	2	10	L/s.person
Dormitories		10	L/s.person
Gambling casinos	1.5	10	L/s.person
Living rooms (suites)		10	L/s.person
Lobbies	3.5	10	L/s.person
Laundries				See dry cleaners
Merchandising				General requirements (apply to all forms unless separately listed)
Arcades	5	10	L/s.person
Dispatch areas	10	10	L/s.person
Fitting rooms or enclosures	1	10	L/s.person
Kiosks	1	10	L/s.person
Malls	5	10	L/s.person
Receiving areas	10	10	L/s.person
Storage areas (serving sales and storerooms)	10	10	L/s.person
Warehouses	20	10	L/s.person
Motels				See hotels
Museums
Exhibits halls	1.5	10	L/s.person
Warehouses	20	10	L/s.person
Offices		10	L/s.person
Art rooms	5	10	L/s.person
Board rooms	1	10	L/s.person
Committee rooms	1	10	L/s.person
Computer rooms	25	10	L/s.person
Conference rooms	1	10	L/s.person
Drafting rooms	5	10	L/s.person
Office areas	10	10	L/s.person
Waiting areas	2	10	L/s.person
Prisons
Cell blocks	5	10	L/s.person
Eating halls	1.5	10	L/s.person
Guard stations	2.5	10	L/s.person
Residential		10	L/s.person
Private dwellings				Private dwelling places, multiple or single, high or low rise
Bedrooms	10	10	L/s.person
Living areas and general	10	10	L/s.person
Other dwellings				See hotels
Boarding houses		10	L/s.person
Guest houses				See hotels
Hostels				See hotels
Mobile homes	5	10	L/s.person
Resorts				See hotels
Schools				See education
Speciality services		10	L/s.person
Animal rooms		5	L/s.m2 floor
Barber shops	4	10	L/s.person
Beauty salons	4	10	L/s.person
Broadcasting studios	1.5	10	L/s.person
Electrical meter, switch rooms		4	L/s.m2 floor
Exercise rooms	5	10	L/s.person
Florist	10	10	L/s.person
Greenhouses	100	10	L/s.person
Hairdressers	4	15	L/s.person
Health spas	5	10	L/s.person
PABX rooms		4	L/s.m2 floor
Pet shops		5	L/s.m2 floor
Press booths, lounges	1.5	10	L/s.person
Radio booths	1.5	10	L/s.person
Reducing salons	5	10	L/s.person
Shoe repair shops (combined workrooms trade areas)	10	10	L/s.person
Survival shelters	1	10	L/s.person
Telephone main distribution frame (MDF) rooms	10	10	L/s.person
Television booths	1.5	10	L/s.person
Sports and amusement centres				When internal combustion engines are operated for maintenance of playing surfaces, or any other purpose, exhaust ventilation may be required
Ballrooms	1.5	15	L/s.person
Bowling alleys (seating areas)	1.5	15	L/s.person
Brothels	5	10	L/s.person
Night clubs	1	15	L/s.person
Games rooms	1.5	15	L/s.person	Amusement machines, billiards, cards, etc.
Playing floors	3.5	10	L/s.person	Cricket, gymnasiums, ice skating, roller skating, squash, tennis, etc.
Spectator areas (general)	0.6	10	L/s.person
Swimming pools, deck and pool area	3.5	10	L/s.person	Higher values may be required for humidity control
Spectator areas (pool)	1.5	10	L/s.person
Places of worship				See theatres
Theatres
Auditoriums	0.6	10	L/s.person
Concert halls	0.6	10	L/s.person
Foyers	0.6	10	L/s.person
Green rooms	5	10	L/s.person
Lecture halls	0.6	10	L/s.person
Lobbies	0.96	10	L/s.person
Opera halls	0.6	10	L/s.person
Stages	1.5	10	L/s.person
Studios	1.5	10	L/s.person
Ticket booths		10	L/s.person
		10	L/s.person
Transportation centres
Baggage areas	1.5	10	L/s.person
Concourses	0.6	10	L/s.person
Corridors	1.5	10	L/s.person
Gate areas	1.5	10	L/s.person
Hangars	50	10	L/s.person
Platforms	0.6	10	L/s.person
Ticket areas	1.5	10	L/s.person
Waiting rooms	1.5	10	L/s.person
Air traffic control	2	10	L/s.person	Refer also to aviation standards. Minimum 5 L/s.m2
Veterinary centres
Kennels		5	L/s.m2 floor
Operating rooms		5	L/s.m2 floor
Reception rooms		5	L/s.m2 floor
Stalls		5	L/s.m2 floor
Workrooms				This requirement covers continuous occupancy. When occupancy is intermittent, infiltration will normally be sufficient ventilation.
Industrial process based on activity level		15	L/s.person	General requirements processes (apply to all forms unless separately listed).
High activity level		15	L/s.person	Mining, foundry, etc.
Medium activity level		10	L/s.person	Automotive repair, assembly line, etc.
Low activity level	10	10	L/s.person	Laboratory work, light assembly, etc. This requirement covers low temperature (23°C to 10°C) rooms occupied continuously. Where occupancy is intermittent, infiltration will normally be sufficient ventilation.
Bank vaults	10	10	L/s.person	Emergency provisions may be needed.
Meat processing	5	10	L/s.person
Pharmacists
Photography	10	10	L/s.person	Installed equipment may require exhaust, to control contaminants.
Camera rooms		10	L/s.person
Dark rooms		10	L/s.person	Contaminants from specialist chemicals may require additional ventilation.
Duplicating rooms	3.5	10	L/s.person
Printing rooms				Same as meat processing.
Refrigerated rooms		10	L/s.person
Strongrooms				Same as bank vaults.
Voucher storerooms				Same as bank vaults.

AS1668.2 Outside Air Requirements

AS1668.2 Outside Air Requirements

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