Suggested Ventilation Rates For Acceptable Indoor Air Quality

  suggested values only
 Refer to local building codes or ANSI/ASHRAE Standard 62 for industry requirements.

Type of Space Estimated Maximum Occupancy (people/1000 ft2) Outdoor Air Required
(cfm/person)		 Air Change Frequency
(Per Hour)		  
Auditoriums 150 15 4

Enter Room Dimensions and the Number of Air Changes to Determine Required CFM

Length:
Width:
Height:
No.of Air Changes:
Required CFM:
Ballrooms / Discos 100 25 3
Bars, Cocktail Lounges 20 10 40
Beauty Shops 25 25 13
Classrooms 50 15 11
Conference Rooms 50 15 11
Correctional Facility Cells 20 20 20
Dormitory Sleeping Rooms 20 15 27
Dry Cleaners (commercial) 30 30 9
Gambling Casinos 120 20 3
Games Room 70 25 5
Hardware Stores 8 15 67
Hospital Operating Rooms 20 30 13
Hospital Patient Rooms 10 25 32
Laboratories 30 20 13
  Laundries (coin operated) 20 15 27  
Libraries 20 15 27  
Medical Procedure Rooms

20

 15 27
Office Spaces 7 20 57  
Pharmacies 20 15 27
Photo Studios 10 15 53  
Recovery and ICU 20

15

 27  
Restaurant Dining Areas 70 20 6  
Retail Facilities 20 15

27

  
Sporting Spectator Areas 150 15 4  
Supermarkets 8 15 67  
Theaters 150 15 4
  Smoking        
Smoking Lounges 20 70 6
  Heavy Smoking Lounges 20 125 3  
Dining Rooms 70 27 4
  Gambling Casinos 120 40 2  
Conference Rooms 50 27 6
  Game Rooms 70 37 3  
Offices 7 27 42