• Fan Filtration Unit (FFU): Located at the top of the clean room, the FFU is responsible for drawing air in and passing it through the built-in filters for initial filtration.

• Filtration system: Includes primary filters and high efficiency filters to intercept and capture airborne particles to ensure that the delivered air meets a predetermined level of cleanliness.

• Air supply and return system: through a specific air duct design, the filtered air is uniformly sent into the clean room at a certain speed, while a return air system is provided to discharge the contaminated air in the room to maintain the cleanliness of the air.

• Homogeneous layer and one-way flow: The formation of homogeneous layer ensures the vertical one-way flow of air, avoiding cross-contamination and ensuring the cleanliness of the working area.

• Installation Environment Preparation

  Before starting the installation of a clean shed, the installation environment needs to be cleaned and sanitized to reduce the level of dust and bacteria in the air and to ensure basic cleanliness conditions.

• Assembling the frame

  According to the clean room program drawings, determine the installation location and size requirements, and then begin to assemble the frame and support structure. Aluminum alloy profiles are usually used to ensure a solid and reliable structure. If the clean room is large, additional support points are required in the center to ensure safety.

• Installation of high efficiency filters and FFU fans

  Firstly, install the high efficiency filter to ensure that it can effectively remove fine dust and bacteria in the air to ensure that the cleanliness level inside the clean room meets the standard. Then install the FFU fan in the specified position and connect the power supply, the FFU fan is one of the most important components in the clean room, it can generate strong airflow to ensure air circulation.

• Installation details

  Install sealing materials, such as sealing strips and gaskets, around the perimeter of the clean shed and at openings such as doors and windows to ensure good sealing. At the same time, install the internal lighting system and electrical system to ensure the power supply is stable and safe, as well as the normal operation of each electrical equipment.

• Debugging and Testing

  After completing the above steps, it is necessary to debug the clean room to ensure that the FFU fan is running normally, the filter is working well, and check whether there is any air leakage or other problems inside the clean room. Use professional testing instruments to test the air quality in the clean room to ensure that the cleanliness, temperature, humidity and other parameters meet the requirements.

• Use and Maintenance

  When using the clean room, we should avoid installing it in dusty, humid or salty places. Regular inspection and maintenance of the clean room should be carried out to clean the filters and discharge pollutants in a timely manner. In addition, particle counters should be used regularly to test the cleanliness of the clean room to ensure that it meets the technical requirements.

Filter Leak Testing

• Inspection of Damaged Filters: Confirms the presence of physical damage to the filter, such as perforations or tears, which could lead to contaminant leakage.

• Inspection of filter-to-frame gaps: Meticulously inspect the gaps between the filter and the frame to ensure that they are well sealed and that there are no visible gaps to prevent contaminants from entering the clean area through these gaps.

• Inspection of other parts of the filter unit: In addition to the filter and outer frame, other potential vulnerabilities of the filter unit, such as fixings, seals, etc., need to be inspected to ensure the integrity of the overall structure.

Isolation Leak Detection Test

Isolation leakage testing is done to prove that suspended contaminants do not pass through the building materials into the cleanroom. This usually involves checking the airtightness of the cleanroom envelope to ensure that it is effective in isolating contaminants from the outside world.

Indoor Airflow Control Testing

The purpose of airflow control testing is to ensure that the airflow in a cleanroom meets the design requirements, which are usually categorized into two types: turbulent flow and unidirectional flow. In the case of a turbulent flow cleanroom, it is necessary to verify that there are no areas of insufficient airflow within the room, while in the case of a unidirectional flow cleanroom, it is necessary to ensure that the air velocity and direction throughout the room meets the design requirements.

Suspended Particle Concentration and Microbial Concentration Tests

These tests are used to confirm that the cleanliness of the cleanroom is up to standard. During the tests, specialized instruments are used to measure the number of suspended particles and the concentration of microorganisms in the air to verify whether the cleanroom can effectively inhibit the accumulation of contaminants.

Other Tests

In addition to the above tests for contamination control, tests such as indoor temperature, relative humidity, indoor heating and cooling capacity, noise level, light level, and vibration value are sometimes required. These tests help to comprehensively evaluate the overall performance of the clean room to ensure that it can operate stably in various environments.