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Minimum Maintained Average Illuminance

Worksite Redesign Technical Advisory Project

Ambient Light in

Task Light in
Areas Lux Footcandles Lux Footcandles
Exterior Entrance (Night) 100 10    
Interior Entry (Day) 1000* 100*    
Interior Entry (Night) 100 10    
Exit Stairways and Landings 300 30    
Elevator Interiors 300 30    
Parking Garage Entrance 500 50    
Exterior Walkways 50 5    
         
Administration (Active) 300 30 500 50
Active Areas (Day Only) 300 30 500 50
Visitor Waiting (Day) 300 30    
Visitor Waiting (Night) 100 10    
         
Resident Room        
Entrance
300 30    
Living Room
300 30 750 75
Bedroom
300 30 750 75
Wardrobe/Closet
300 30    
Bathroom
300 30    
Make-up/Shaving Area
300 30 600 60
Shower/Bathing Area
300 30    
Kitchen Area
300 30 500 50
       
Barber/Beautician 500 50    
Chapel or Quiet Area (Active) 300 30    
Hallways (Active Hours) 300 30    
Hallways (Sleeping Hours) 100 10    
Dining (Active Hours) 500 50    
         
Medicine Preparation  300 30 1000 100
Nurses Station (Day) 300 30 500 50
Nurses Station (Night) 100 10 500 50
Physical Therapy Area (Active Hours) 300 30 500 50
Occupational Therapy (Active Hours) 300 30 500 50
Examination Room (Dedicated) 300 30 1000 100
         
Janitor's Closet 300 30    
Laundry (Active Hours) 300 30 500 50
Clean/Soiled Utility 300 30    
Commercial Kitchen 500 50 1000 100
Food Storage (Non-Refrigerated) 300 30    
Staff Toilet Area 200 20 600 60

*Utilization of daylight is encouraged in entryways to provide a transition between outside and interior illumination levels.Note: Ambient light levels are minimum averages measured at 76 cm (30 in.) above the floor in a horizontal plane. Task light levels are absolute minimums taken on the visual task. For make-up/shaving, the measurement is to be taken on the face in a vertical position. Note​: It should be understood that the values listed are minimums. The optimum solution for task lighting is to give users control over the intensity and positioning of the light source to meet their individual needs.



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