Lighting that aligns with recommended practice
Patient Room | Illuminance (Lux) | Uniformity | ||
---|---|---|---|---|
Task | Notes | Horizontal (Eh) | Vertical (Ev) | Avg:min |
Ambient | Eh at floor – to cover 3ft border surrounding bed | 100-200 | 4 to 1 | |
Ev at 5′ AFF* | 20-40 | |||
Exam | Eh on bed at 3′ AFF | 500-1000 | 2 to 1 | |
Ev at 4′ AFF | 200-400 | |||
Reading | Eh and Ev at lap area on bed at 3′ AFF | 400-800 | 100-200 | 3 to 1 |
Night Check | Eh at 3′ AFF and Ev at 4′ AFF | 30-60 | 6 to 12 | 4 to 1 |
Nightlight | at floor | 2 to 4 | N/A | |
Medical Service | Eh at 3′ AFF and Ev at 4′ AFF | 500 | 300 | 3 to 1 |
Guest Area Sitting | Eh and Ev at 2′-6″ AFF | 150-300 | 50-100 | 3 to 1 |
To convert lux to foot candles, divide lux value by 10.7
Illuminance levels listed in the charts above represent recommended industry standards for ages ranging from 25 to > 65.