Samsung NP940X3G-K03US - Manual (Page 103)

Appendix
103
Operating conditions
• Take at least a 10 minute break every hour.
• Avoid using the computer in dark locations. Use the computer
with as much ambient light as you would when reading a
book.
• Indirect illumination is recommended. Use a curtain to
prevent reflections and glare on the screen.
• While operating a computer and talking on the phone, use a
headset. Using the computer while holding a phone on your
shoulder or with your neck may lead to muscle strain or injury.
• Keep frequently used items within reach.
• Use the computer only within the temperature and humidity
ranges specified in this manual.