It should be noted that the noise level of modern computers is low and does not interfere with normal operation. Laser printers also produce ozone, but all the printers in Print spreading dust. Modern printers are small selection, but still not to be printed in unventilated areas and tilted to the printer during printing. If the printer prints a lot, it is necessary take care of additional ventilation. So far examined only the characteristics of the computer and the room in which it resides.
However, it is important to organize the work place and set up your computer. Whatever high-quality monitor you use, if it is to significantly reduce the brightness and contrast, you will greatly strain the eyes and tired quickly. Unfortunately, the article can not describe the particular configuration of all models of monitors, so that you must try to choose the most satisfying you the brightness and contrast. It should be remembered that the bust is also harmful, as the shortfall. By the way, if the edges screen you are still black bars, you should adjust the image size. In this modern monitors is very simple.
Extremely important parameter is the vertical frequency, that is, the rate of change personnel. This frequency depends on the resolution of the screen that is displayed on the number of points. In any screen resolution to use the frequency of not less than 85 Hz, 100 Hz or better. For LCD monitors is considered normal frequency of 70 Hz. If your monitor does not support this rate, it is necessary to reduce the resolution.