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How do you design a hardwall clean room?

  • Author:Jason Peng

  • Cleanroom Engineering Technology Manager of Deiiang Company.

    Product R&D Manager of GDC Inc. Cleanroom Equipment Manufacturing Company.

    Executive Director of Guangdong Cleanroom Industry Association of China.

    Engaged in R&D of related products for 15 years, with rich relevant technical experience

  • 2024-12-27  |  Visits:

Designing a hardwall Cleanroom is a meticulous process that requires a deep understanding of cleanroom standards, contamination control, and operational efficiency. The design must begin with a clear definition of the cleanroom's intended use and the specific cleanliness requirements, which will dictate the materials, layout, and systems to be implemented.  Additionally, thoughtful integration of utilities and personnel workflows is essential to ensure both functionality and compliance with industry regulations. 

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Understanding CleanRoom Classifications

Designing a hardwall cleanroom begins with a clear understanding of the necessary cleanroom classification. Cleanrooms are categorized according to the maximum allowable levels of airborne particulate contamination, which are defined by international standards such as ISO 14644. The classification dictates the design requirements, including air cleanliness, temperature, humidity, and pressure levels. For example, a Class 100 Cleanroom permits a maximum of 100 particles of 0.5 micrometers or larger per cubic foot of air, which requires specific engineering controls and filtration systems to achieve.

Selecting the appropriate cleanroom classification is crucial as it impacts every subsequent design decision. Deiiang helps clients determine the ideal classification based on their operational needs, ensuring compliance with relevant standards and regulations. This initial step lays the foundation for a successful Cleanroom design, guiding material choices, airflow management, and environmental controls.

Designing the Cleanroom Layout

Once the cleanroom classification is established, the next step is to design the layout. A well-thought-out layout is essential for optimizing workflow and minimizing contamination risks. 

The layout should also consider the size and shape of the cleanroom, allowing adequate space for personnel and equipment while facilitating easy maintenance. Deiiang provides expert guidance in creating efficient layouts tailored to specific operational needs, ensuring that all relevant standards are met.

Selecting Appropriate Materials

Material selection is a critical aspect of hardwall cleanroom design. Materials must be non-porous and durable, capable of withstanding frequent cleaning and disinfection without degrading. Common materials used in hardwall Cleanrooms include:

  • Steel: Often used for structural components due to its strength and ease of cleaning.

  • Fiberglass Reinforced Panels: Lightweight and resistant to corrosion, making them ideal for wall panels.

  • High-Pressure Laminate: Provides a smooth, easy-to-sanitize surface.

The chosen materials must also comply with safety standards, such as ASTM E84, which evaluates surface burning characteristics. Deiiang offers a range of high-quality materials that meet these requirements, ensuring both safety and performance in cleanroom environments.

Airflow Management and Filtration

Effective airflow management is vital for maintaining the cleanliness and functionality of a hardwall cleanroom. airflow design should aim to provide uniform air distribution while preventing dead spots. 

Deiiang specializes in designing advanced HVAC systems that align with these requirements, ensuring that the cleanroom maintains optimal air quality. Compliance with iso 14644-1, which outlines the performance requirements for cleanrooms, is essential in this phase of design.

Environmental Control Systems

In addition to airflow management, environmental control systems are crucial for maintaining stable conditions within the cleanroom. These systems regulate temperature and humidity, which are vital for many processes. The design should incorporate:

  • Temperature Control Systems: Maintaining consistent temperatures to support sensitive operations.

  • Humidity Control: Preventing excess moisture that could compromise materials or processes.

  • Monitoring Systems: Integrating sensors that provide real-time data on environmental conditions, allowing for quick adjustments as needed.

Compliance with ISO 14644-3, which details the monitoring requirements for cleanrooms, is essential to ensure that the cleanroom operates within specified limits. Deiiang provides comprehensive solutions for environmental control systems, ensuring that cleanroom conditions remain stable and within compliance.

Integrating Utilities and Support Systems

The final stage of cleanroom design involves integrating various utilities and support systems. This includes electrical systems, gas supply, and compressed air lines, all of which must be strategically designed to minimize contamination risks. Key considerations include:

  • Electrical Design: Ensuring systems are designed to reduce static electricity, which can be a significant source of contamination.

  • Gas and Air Lines: Proper routing to avoid cross-contamination and facilitate easy maintenance.

  • Emergency Systems: Incorporating backup power supplies and alarms to maintain operations during unforeseen events.

Deiiang offers expertise in integrating these utilities while adhering to industry standards, ensuring that the cleanroom is fully functional and compliant with safety regulations.

Conclusion: Developing Standard Operating Procedures

Finally, once the design is complete, developing Standard Operating Procedures (SOPs) is essential for maintaining cleanroom integrity. SOPs should cover all aspects of cleanroom operation, including

Finally, once the cleanroom design is complete, developing Standard Operating Procedures (SOPs) is essential for maintaining cleanroom integrity. SOPs should cover all aspects of cleanroom operation, including

Effective SOPs ensure that all personnel understand their roles and responsibilities, fostering a culture of cleanliness and compliance. Regular reviews and updates of these procedures are crucial, especially in response to new regulations or operational changes. Deiiang can assist in developing customized SOPs tailored to the specific needs of the cleanroom, ensuring consistent adherence to industry standards.

Compliance with Regulations and Standards

Throughout the cleanroom design process, adhering to relevant regulations and standards is critical. Compliance not only ensures the safety and effectiveness of the cleanroom but also protects the integrity of the products being manufactured or tested within it. Key standards to consider include:

  • ISO 14644: A series of international standards that define cleanroom performance and testing.

  • FDA Regulations: For cleanrooms used in pharmaceutical and biotechnology applications, compliance with FDA regulations is essential.

  • GMP (Good Manufacturing Practices): Guidelines that ensure products are consistently produced and controlled according to quality standards.

Deiiang understands the importance of compliance and provides support to ensure that cleanroom designs meet all necessary regulatory requirements. This commitment to compliance helps businesses operate safely and efficiently while minimizing risks associated with contamination.

Continuous Improvement and Upgrades

The cleanroom should not be considered a static entity; it requires ongoing evaluation and potential upgrades to remain compliant and efficient. Regular audits and performance assessments can identify areas for improvement. 

Deiiang offers ongoing support and consultation services to help businesses implement continuous improvement strategies in their cleanroom operations. By fostering a culture of excellence and adherence to best practices, organizations can maximize the effectiveness of their cleanroom environments.

Conclusion

Designing a hardwall cleanroom involves a comprehensive approach that integrates classification, layout, material selection, airflow management, environmental controls, utilities, and SOP development. Each phase of the design process must adhere to relevant standards, such as ISO 14644, and consider the specific requirements of the industry in which the cleanroom will operate.

With Deiiang's expertise, businesses can successfully navigate these complexities, ensuring that their cleanroom not only meets regulatory requirements but also facilitates efficient and safe operations. Continuous monitoring, training, and improvements further enhance the cleanroom's functionality, supporting the organization's long-term goals and ensuring product integrity. By investing in a well-designed cleanroom, companies can significantly reduce contamination risks, improve product quality, and enhance operational efficiency, ultimately leading to greater success in their respective fields.

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