• Ventilation System

  The ventilation system of a clean room is a core component designed to reduce particles and other contaminants in the air through efficient air movement, while removing unclean air and bringing in fresh, filtered air. This system typically includes key components such as supply fans, exhaust fans, and air filters that work together to maintain cleanliness inside the cleanroom.

• Filters

  Air filters are an integral part of a clean room and are typically used, such as HEPA (High Efficiency Particulate Air) or ULPA (Ultra High Efficiency Particulate Air) filters, to capture and remove small particles and ensure that airborne particulate matter is maintained at an acceptably low level.

• Air Quality Control

  Clean rooms often use negative or positive pressure systems to prevent outside contaminated air from entering or inside contaminated air from escaping and to maintain the cleanliness of the internal environment. This type of control helps to maintain a stable microenvironment, which is particularly important for the production of high-precision products and for conducting precision experiments.

• Clean Clothing

  Operators working in clean booths are often required to wear specialized clean suits, including helmets, masks, gloves, and special clothing to minimize contamination from personnel. The materials and design of clean suits are designed to prevent the shedding and accumulation of particulate matter while providing the necessary protection.

Floor requirements

The floor of the clean room must be flat, free of gaps, and wear and corrosion resistant to prevent the accumulation of any substances that may affect cleanliness. Epoxy self-leveling flooring with a thickness of more than 1mm is recommended and its service life usually exceeds 6 years. When laying flooring materials, a moisture barrier should be provided underneath and ensure that bin lines do not pass through clean areas to prevent cross-contamination.

Wall requirements

Walls should be smooth, level, dust free and resistant to corrosion. Colors should be coordinated to help identify contaminants. Interior wall coatings shall contain anti-mold, anti-static and disinfectant materials to maintain a clean and germ-resistant wall surface. The junction of the wall and floor should be painted with an arc of at least 50mm radius to minimize dust accumulation and facilitate cleaning and maintenance.

Installation Precautions

• Installation location: choose a dry, ventilated, well-lit environment, avoid direct sunlight, and meet special requirements, such as anti-static and anti-corrosion.

• Foundation construction: ensure that the foundation construction meets the design requirements, the foundation should be level, solid and horizontal, and only after acceptance can the installation continue.

• Frame installation: use the frame made of steel section, ensure verticality and levelness during installation, and carry out anti-corrosion and anti-rust treatment after completion.

• Roof and wall plate installation: use purification board or other materials that meet the clean requirements to ensure the flatness of the roof and wall plate, and tight seams to avoid loopholes.

• Air purification system installation: the interior should be equipped with an air purification system, including high-efficiency filters, air showers, ultraviolet disinfection lamps, etc., to ensure that the components are connected tightly to avoid air leakage.

• Lighting system installation: the interior should be equipped with waterproof and dustproof lighting system to ensure the uniformity of lighting.

• Electrical system installation: the electrical system should comply with national standards and industry requirements to ensure stable and safe power supply.

• Grounding treatment: the grounding treatment should meet the design requirements to ensure the safe operation of the equipment.

• Acceptance and debugging: carry out acceptance after the installation is completed to ensure the normal operation of the systems and achieve the expected clean effect.

• Measurement of Air Supply and Exhaust Volume

  For a turbulent flow cleanroom, the supply and exhaust air volumes are measured, while for a unidirectional flow cleanroom, the air velocity is measured. This is because unidirectional flow cleanrooms are designed to allow air to flow in one direction, effectively minimizing the possibility of cross contamination.

• Airflow Control Inspection

  The inspection also ensures that the airflow between zones is moving in the correct direction, i.e. from the clean zone to the less clean zone. This includes checking that the pressure differential between zones is correct and that the direction of airflow movement at doorways or openings in walls, floors, etc. is compliant.

• Filter Leak Detection Inspection

  Inspection of HEPA filters and their frames is essential to ensure that suspended contaminants do not enter the room through damaged filters, gaps between filters and their frames, or other areas.