• Frame Material

  The frame of the clean shed is usually made of industrial aluminum profiles or stainless steel squares, and sometimes iron squares with multi-layer pickled electrostatic spraying are also used. All these materials have good corrosion and rust resistance properties, which can ensure the stability and beauty of the structure. Aluminum profiles are widely used because of their non-rusting and non-dust-producing properties. Moreover, aluminum profiles can also be obtained in different colors and textures through various surface treatments to meet different decorative needs.

• Wall Materials

  The wall materials of the clean room are various, and the common ones are anti-static curtain, acrylic board and tempered glass. Anti-static curtain has good anti-static effect and high transparency, clear grid, good flexibility, not easy to deformation and aging, can effectively prevent the accumulation of dust. Acrylic panels and tempered glass provide higher solidity and transparency, and are suitable for clean environments with certain requirements for vision.

• Fan Filter Unit (FFU)

  FFU is an important part of the clean room, which is responsible for providing a continuous flow of clean air.FFU usually adopts centrifugal fans, which are characterized by long life, low noise, maintenance-free, low vibration, and infinitely variable speed. In addition, the air duct design of FFU is also very critical, which can significantly improve the efficiency of the fan and reduce noise.

• Interior Decoration

  Decorative materials inside the clean room should not be ignored, including special purification lamps and internal decorative panels. Purification lamps do not produce dust and can provide sufficient light, while the internal decorative panels need to be easy to clean and leave no traces of materials to maintain the cleanliness of the interior.

• Structural Characteristics

  The clean shed is mainly composed of box, fan, primary air filter, high efficiency filter, damping layer, lamps and other components. The box is usually constructed by industrial aluminum or stainless steel square, and the surface is sprayed with plastic, which is not only stable but also not rusting and producing dust. Anti-static curtains or tempered glass are used around to ensure transparency and dustproof performance. The fan filter unit (FFU) adopts centrifugal fan, which has the characteristics of long life, low noise, maintenance-free, etc., and the internal purification level can reach 100-100K level.

• Installation and Use

  The clean room is easy and quick to install, can be assembled in a short time, and can be used individually or connected to form a strip clean area. Due to the modular design, the clean room's cleanliness level can be easily adjusted, is highly expandable, and has a high reuse value. In addition, the bottom of the clean room can be equipped with mobile universal wheels for easy positioning and movement.

• Applications

  Clean rooms are widely used in electronic factories, food factories, laboratories and other fields. In electronics factories, clean booths are often used in assembly line work areas and inspection tables to improve product quality. In food factories, clean booths are used in the packaging process to ensure food safety. In laboratories, clean booths are used to provide researchers with a dust-free and germ-free experimental environment.

• Advantages

  Compared with the traditional clean room, the clean room has the advantages of low investment, quick effect, easy installation and low operation cost. Its modular structure and flexible mobility make it easy to adapt to different needs and environmental changes. At the same time, the clean room can also effectively control and maintain the internal airflow organization to ensure the cleanliness of the air and meet the clean requirements of various production activities.

• Preparation before installation

  The first thing to do before installing a clean shed is to prepare the site. This includes ensuring that the installation site is dry, ventilated and well lit, taking into account the special requirements of anti-static and corrosion protection. In addition, it is necessary to prepare all the necessary materials and tools, such as the cleanroom frame, filters, sealing materials, screwdrivers, levels, etc.

• Foundation construction

  The foundation is the basis for the installation of the cleanroom, and it is necessary to ensure that the ground is smooth, solid and level. The quality of this step has a direct impact on the stability and longevity of the subsequent cleanroom.

• Frame Installation

  The frame of the clean room is usually made of steel or aluminum alloy, and the installation should ensure the verticality and horizontality of the frame, as well as the overall stability. The installation quality of the frame is directly related to the structural safety and clean effect of the clean room.

• Installation of ceiling and wall panels

  The installation of the ceiling and wall panels requires the use of purification boards or other materials that meet the cleanliness requirements. When installing the ceiling and wall panels, pay attention to the flatness of the ceiling and wall panels, as well as the tightness of the seams, to avoid loopholes affecting the cleanliness.

• Air purification system installation

  The interior of the clean room must 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 each component is tight to avoid air leakage.

• Lighting system installation

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

• Electrical system installation

  The electrical system of the clean room needs to comply with relevant national standards and industry requirements. Installation should ensure that the power supply is stable and safe, as well as the normal operation of the 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.

• System debugging and testing

  After the installation of the clean room is completed, system debugging and testing is required, including the operation of air conditioning system, cleanliness test and equipment function test, etc., to ensure that the normal operation of the system to achieve the expected clean effect.

• Acceptance and debugging

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

Clean room testing standards

Clean shed testing standards should be widely applicable and highly authoritative. National standards, industry standards and international standards have high credibility and recognition. For example, "Clean room and related controlled environments Part 1: Air cleanliness level" (GB/T 25915.1 - 2010) and so on provide basic norms and requirements for the environmental testing of clean room; international standards such as ISO 14644 series of standards are widely used in clean room environmental testing worldwide. In addition, the testing standards and guidelines issued by some professional organizations, such as the relevant standards issued by the U.S. Institute of Environmental Science and Technology (IEST), can also be used as a reference basis.

Clean room testing program

• Dust particle count: Detect the number of dust particles in the air to ensure the cleanliness of the air.

• Settled bacteria: Detect the number of microorganisms in the air, especially settled bacteria.

• Floating Bacteria: Detects microorganisms floating in the air, such as bacteria and viruses.

• Differential Pressure: Detects the difference in pressure between indoor and outdoor or between areas of different cleanliness levels to ensure that air flows in the right direction.

• Ventilation Frequency: Checks the frequency of operation of the ventilation system to ensure air circulation and purification.

• Air velocity: Measure the speed of air flow to ensure uniformity of air flow.

• Fresh air volume: Assess the supply of fresh air to ensure indoor air quality.

• Illumination: Checks lighting conditions to ensure that the work area is adequately lit.

• Noise: Check the sound level in the environment to ensure a quiet working environment.

• Temperature: Checks the temperature in the working area to ensure suitable working conditions.

• Relative Humidity: detects the humidity in the air to maintain proper environmental conditions.

Clean room testing equipment

Clean room testing requires the use of specific equipment such as dust particle counters, bacterial samplers, differential pressure meters, anemometers, airflow hoods, noise meters, illuminance meters, temperature and humidity meters to accurately measure various parameters.

Clean room testing range

The testing scope of clean shed is wide, including food clean room, health care purification workshop, cosmetic clean project, bottled water filling workshop, clean production workshop for electronic products, GMP purification workshop, hospital operating room, animal laboratory, biosafety laboratory, biosafety cabinet, ultra-clean workbench, clean room, aseptic workshop and so on.

Importance of test report

Third-party cleanroom testing and acceptance units need to be certified by the National Laboratory Accreditation Service (CNAS) and metrological certification (CMA), and the cleanroom test reports issued by them can truly reflect the actual situation of the cleanroom. These reports can be used as the basis for third-party impartial evaluation, and can be used for the clean environment inspection report for QS certification and the production environment clean inspection report for GMP certification.