Air Filtration

Air filtration is one of the most basic functions of a cleanroom. Cleanrooms are usually equipped with high-efficiency air filters inside that intercept and remove microscopic particles and contaminants from the air. For example, HEPA filters capture most particles larger than 0.3 microns in diameter, while ULPA filters are more efficient at capturing smaller particles. The use of these filters ensures that the air entering the interior of the clean room meets a predetermined level of cleanliness.

Positive Pressure Control

Positive pressure control is another key technology in clean rooms. In order to prevent outside contaminants from entering the cleanroom, the cleanroom must maintain a higher pressure than the surrounding environment. This is achieved through a forced-air system that delivers filtered, high-cleanliness air into the shed, creating a constant airflow that prevents the intrusion of outside contaminants. In addition, the positive pressure helps to keep the temperature and humidity inside the shed stable, providing a favorable environment for sensitive manufacturing activities.

Installation Location

The clean shed should be installed in a dry, ventilated, well-lit environment, avoiding direct sunlight. The installation location should also meet the special requirements of the relevant industries, such as anti-static, anti-corrosion and so on.

Foundation construction

Clean shed foundation construction should be in line with the design requirements to ensure that the foundation is level, solid, horizontal. After the foundation construction, acceptance should be carried out, and the installation of clean shed can be carried out only after passing.

Frame installation

The frame of the clean shed is made of steel, and the verticality and horizontality of the frame should be ensured during installation. After the installation of the frame is completed, anti-corrosion and anti-rust treatment should be carried out.

Ceiling and wall plate installation

The roof and wall plate should be made of purification plate or other materials that meet the clean requirements. When installing, the flatness and tightness of the joints of the ceiling and wall plate should be ensured to avoid any loopholes.

Air purification system installation

The interior of the clean shed should be equipped with an air purification system, including high-efficiency filters, air showers, ultraviolet disinfection lamps and so on. When installing, make sure the connection between components is tight to avoid air leakage.

Lighting system installation

The interior of the clean room should be equipped with a lighting system, including LED lamps and lanterns. When installing, the waterproof and dustproof performance of the lamps and lanterns as well as the uniformity of illumination should be ensured.

Electrical system installation

The electrical system of the clean room should meet the relevant national standards and industry requirements. When installing, it should ensure the stability and safety of power supply, as well as the normal operation of each electrical equipment.

Grounding treatment

The grounding treatment of the clean room should meet the design requirements to ensure the safe operation of the equipment inside the clean room.

Acceptance and debugging

Clean shed installation is completed, acceptance should be carried out. After acceptance, the clean shed debugging to ensure that the normal operation of the system to achieve the desired clean effect.

Cleanliness Testing

Cleanliness is the core indicator of a clean room, and the cleanliness level of a clean room is usually assessed through particle concentration monitoring. Depending on the cleanliness level, the number of dust particles in the air is tested to ensure that the cleanliness of the air in the cleanroom meets the expected standards.

Differential Static Pressure Measurement

Differential static pressure is the difference in pressure between different areas in a clean room, which is important for preventing contamination from spreading and ensuring airflow direction. The differential pressure between different areas is detected to ensure the airflow direction in the clean room and to prevent the spread of contaminants.

Air velocity or air volume detection

Wind speed or air volume is an important factor affecting the air circulation in the clean room, through the measurement of the wind speed and air volume of the air supply and return air, in order to ensure the reasonable distribution of air and the effect of air exchange.

Temperature and humidity detection

The control of temperature and humidity is an important part of the environmental management in the clean room, detecting whether the temperature and humidity in the clean room are in accordance with the design requirements, in order to ensure the normal progress of the production process.

Noise Detection

Noise level control is also part of the environmental management of the clean room, testing the noise level in the clean room to ensure the comfort of the working environment.

Illumination Detection

Illumination refers to the lighting intensity in the clean room, test the lighting intensity in the room to ensure that the working area has enough brightness.

Microbiological Testing

Microbiological testing includes the detection of planktonic and settled bacteria to assess the level of microbiological control in the cleanroom.

Surface Microbiology

Surface microbiological testing evaluates the microbiological contamination of cleanroom surfaces, which is essential to prevent the spread of microorganisms and protect product quality.

Anti-static Testing

Anti-static testing is an important step to ensure that static charges in the cleanroom do not affect external equipment and products.

Comprehensive Testing

Comprehensive testing is a comprehensive check and evaluation of the above indicators to ensure that the clean room meets the expected cleanliness and environmental quality requirements.

Inspection Period and Frequency

Depending on the cleanliness level and production requirements, the inspection cycle and frequency of the clean room will be different. Typically, cleanroom inspections need to be carried out on a regular basis to ensure that they continue to meet the expected cleanliness and environmental quality standards.

Inspection Report

Upon completion of the inspection, an inspection report should be issued to record in detail the results of each indicator and whether it meets the expected standards, so as to facilitate subsequent management and improvement.