•Recommended work surface space is 160 cm wide by 80 to 90 cm deep (63 inches by 32 to

36 inches deep), or a corner unit of 91 to 107 cm deep (36 to 42 inches). The recommended vertical adjustment range is 66 to 77 cm (26 to 30 inches). If the height is fixed, it should be between 72 and 75 cm (28.5 to 29.5 inches).

•There should be at least 6 cm (2 inches) between your thighs and the work surface. If the surface has a kneehole, it should be at least 58 cm

(23 inches) wide, 65 cm (25.5 inches) high, and60 cm (24 inches) deep.•Recommended lighting levels are between

300 and 500 lux (30 to 50 foot-candles). Values over 1000 lux (100 foot-candles) are considered to be too bright. For work on the screen, 300 lux (30 foot-candles) is enough for most work.

When documents are to be read, 500 lux (50 foot-candles) is recommended.

Your Work Posture

Sitting in one position for long periods can be uncomfortable. To minimize the potential for physical discomfort or injury, it’s important that you maintain proper posture.

Chapter 1 • Preparing to Use Your Computer

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