1. Clean clothes should be made of materials that do not generate static electricity or are treated with anti-static treatment, because the relative humidity in the clean room is half lower, and the live potential of some man-made fibre work clothes is very high. After anti-static treatment, the live potential can be reduced by 80%, and the dust adhesion rate can be reduced by 90%.
2. Clean clothes are better separated from trousers, but coats must be placed in trousers. In addition, hats or shawls, canvas shoes, slippers and gloves should also be equipped as required.
3. When shawls are used in high-level clean rooms, the hem should be placed in the jacket. A hat is not allowed to be worn only in the second half of the head. It must cover the top of the forehead and the ends of the hair.
4. For rubber gloves with talc powder, talc powder must be removed before being brought into the clean room.
5. New clean clothes must be washed before they can be used. Conditionally, it can be washed with dust-free water or pure water, which is much better than washing with ordinary water.
6. Clean clothes should be washed once a week or two. Washing, drying and packaging must be carried out in a clean environment in order to avoid re-attaching dust.