7 misunderstandings about cleanroom
- 19, 08, 2021
Cleanrooms are widely used in microelectronics, pharmaceutical, food processing, cosmetics, and other industries. However, due to various reasons, there are some mistakes in the utilization of clean rooms.
1. You want to use the cleanroom, not you need the cleanroom.
This mistake is common in food processing, pharmaceutical, health care, cosmetics, and several other industries.
Some manufacturers do not know why they need a clean room, they do not know what the cleanroom is for. To get production permits, or deal with inspections, they will build cleanrooms. As a result, a cleanroom is just the name.
2. The differences of cleanroom in the static (at rest) condition and at the dynamic (in operation) condition
Cleanroom cleanliness testing is mainly carried out under static conditions (at rest), while cleanliness in dynamic conditions (in operation) greatly affects scientific research and production activities. Cleanliness in dynamic conditions can be completely different from cleanliness in static conditions.
There are many factors that affect cleanliness under dynamic conditions, such as dust from operators, pollution from equipment, materials, etc. Therefore, the analysis, research, and control of pollution sources are very necessary. Cleanliness in dynamic conditions is controlled to prevent system changes. It is necessary to continuously monitor, detect and solve problems in time.
3. Using cleanrooms without regular testing
The following problems will affect the cleanliness of the room:
- Pollution from waste
- Filter media break and leak
- The amount of air supplied varies
- Improper management
- Changes in external conditions
So, if you have a clean room, check it regularly.
Cleanrooms, in general, need to be tested at regular intervals, some rooms need to be tested once a day; some need to be checked once a week; some need to be checked once a month.
The specific test cycle should be determined according to the cleanliness level of the cleanroom.
Cleanrooms with a high degree of cleanliness typically have a short inspection frequency. Cleanrooms require constant testing and inspection to ensure that the room can achieve the required cleanliness at all times.
4. Only protect products, do not protect people
Some substances are harmful to the product and harmless to humans; Some substances are harmful to humans and harmless to the product. For example, sodium chloride is not harmful to humans, but it is very harmful to microelectronics. Toxic gases generated during the production process have little effect on the product but negatively affect the health of the cleanroom operator.
Some traditional cleanrooms are more concerned with product protection and have little or no human safety considerations. It is important to note that humans are the top priority. In addition to providing a clean and safe environment for products, the utilization of cleanrooms should also ensure the workers' safety.
If the production process emits a lot of harmful gases, the following measures can be applied:
(1) increasing air supply;
(2) increasing the density of fresh air;
(3) controlling the emission of harmful gases;
(4) designing special discharge facilities. Exhaust gas from the toxic gas source is discharged directly to the outside;
(5) installing an air purifier to remove harmful gases.
The electronics industry, the pharmaceutical industry, and the cosmetic industry emit a lot of harmful gases. These gases are harmful to the human body, it is necessary to pay attention to this problem because the most important thing is to protect human health.
5. Pollution control
Some companies spend a lot of money to build clean rooms. Due to improper handling of the contaminants in the production equipment, the pollutants are discharged into the entire cleanroom, causing the entire cleanroom to lose its function.
It is necessary to separate contaminants in production equipment. In addition, eco-friendly equipment should be used more, and green production materials should be used as much as possible.
6. Humans is not a source of contamination
The largest source of contamination in a cleanroom is personnel. Personal protective equipment (PPE) is the main solution to prevent the emission of pollutants by humans in cleanrooms. Different classifications of cleanrooms have different requirements for PPE. The protective clothing is not tight, skin flakes and particles from the underwear and the body of the workers are easily released into the air of the cleanroom, thereby reducing the cleanliness of the cleanroom.
What you may not know is that dust on workers' underwear is the main source of pollution, which greatly affects the product quality. Therefore, a cleanroom not only has strict requirements for the cleanliness of the shirt, bactericidal but also has higher requirements for the hygiene of the staff's underwear and body.
7. Using cleanrooms without maintenance
Some manufacturers only use clean rooms, and do not have maintenance plans. In fact, dust accumulation, contamination from production equipment, raw material pollution, worker pollution, reduced air volume, high-efficiency filter leakage, and other factors will reduce the cleanliness of the clean room. As a result, the quality of the product is degraded.
In order to improve product quality, clean room should be monitored and maintained on a daily basis. In general, clean rooms should be assigned to a responsible person to manage.
Vietnam Cleanroom Equipment (VCR) specializes in providing cleanroom equipment for contractors in Vietnam. We provide high-quality products with competitive prices and large quantities nationwide.
For details, please refer to Vietnam cleanroom equipment official website
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