Cleanrooms have very high requirements for the internal environment, and maintaining the cleanliness of the space is the most important aspect. Identifying sources of contamination is a crucial task. In fact, some contamination in cleanrooms comes from the employees working there. Why is that? How do employees become a source of contamination? Today, I will explore this issue with everyone.
In our daily lives, the human body continuously sheds various types of microscopic particles. These include dead skin cells and bacteria from our breath, which can easily affect the hygiene of a cleanroom. So, what should employees pay attention to when working in a cleanroom? Here are the specific points to note:
1. Before entering the cleanroom, employees should first take an air shower. While working, all hair, including facial hair, should be completely covered with a hairnet to prevent loose hair from affecting the production process.
2. During work, employees should try to avoid or minimize direct contact with equipment and products. If possible, fully automated production processes should be used. If contact is unavoidable, hands should be thoroughly washed and gloves worn to prevent contamination of equipment and products.
3. The mouth and nose harbor many viruses, bacteria, and small particles. Therefore, in a cleanroom, employees should avoid shouting or speaking loudly. Additionally, coughing and sneezing should be minimized. If unavoidable, employees should step away from the work area to avoid affecting product production.
4. In addition to regular showers or baths, employees should also wash their hair frequently. Maintaining personal hygiene helps reduce the shedding of dead skin cells. Before entering the cleanroom, hands should be thoroughly sanitized. Even seemingly clean hands can be a major source of contamination, transferring pollutants from one place to another. Special attention should be paid to fingernails, cuticles, and any wounds on the hands during washing.
5. Employees working in high-cleanliness areas should ensure they are in good health. Avoid bringing viruses into the cleanroom, as this could disrupt the cleanroom environment.
